Archive for category Science

Movie Review: Exodus Gods and Kings

Yesterday morning I caught the early bird showing of the new movie “Exodus: Gods and Kings,” directed by Ridley Scott. Regular readers of Funmurphys: the Blog already know that I have written and published a new book about the Hebrew Exodus from Egypt, focusing specifically on crossing the Red Sea. The book is titled: Between Migdol and the Sea: Crossing the Red Sea with Faith and Science (2014), by Carl Drews. This review is written from a book author’s perspective.

Spectacle and Grandeur

A good biblical epic should provide jaw-dropping spectacle and majestic grandeur. Exodus: Gods and Kings provides these in abundance! Some of the earlier scenes show the great sweep of the Nile delta, with pyramids rising along the banks of the great river, while Bronze Age citizens bustle about under the stern watch of the Pharaoh’s foremen. Ancient Egypt was a marvelous place! This movie really brings out the grandeur of the New Kingdom in all its glory.

Ten Plagues

The Ten Plagues are depicted graphically in the film, and the result is disturbing. A week ago I would have not imagined an infestation of frogs to be all that bad, but I just about jumped out of my theater seat to see all those slimy amphibians crawling over everything! Yuck! Then there came all manner of flies, more flies than I have ever seen even in Alaska. We saw the movie in 3-D, and we were recoiling and trying to get out of the swarm. The plagues are very well done by the cinematographer.

Exodus: Gods and Kings brings out a theological point: During the Ten Plagues, a lot of people suffered greatly. According to the narrative in Exodus, Pharaoh suffered because he refused to let the Israelites go. Ridley Scott makes the point that many common Egyptians suffered as well, through no fault of their own. What kind of god would strike dead all the first-born sons? Modern Christians continue to feel uncomfortable about these episodes, and we debate various resolutions. Generally we conclude that Jesus doesn’t do things that way any more, and we follow Jesus.

God as a Petulant British Boy

God Almighty is portrayed in Exodus: Gods and Kings as a boy about 8 years old with a British accent. I can accept God speaking to Elijah as a “still, small voice” in 1 Kings 19. I believe that God became incarnate in the baby Jesus Christ, born in Bethlehem. But the surly attitude of the God-boy in this movie was jarring, and I was left wondering why Moses would accept the commands from such a manifestation of the Almighty. At least the boy should have had more gravitas, and should have spoken to Moses with graceful majesty. Was Morgan Freeman not available?

Goblins and Chariots

There is a scene in The Hobbitt: An Unexpected Journey where Gandalf and the dwarves kill the Great Goblin and escape from the underground goblin kingdom. When my family watches this sequence at home, we usually keep a body count of goblins, yelling out the numbers as they fall. Our total usually comes out to about 140.

During the pursuit of Moses by the Egyptian army, Rameses II charges with all his chariots down a narrow mountain road after the fleeing Israelites. Naturally some careless chariot driver careens off the edge and tumbles down the mountain. Then another chariot hits a rock, and within a few moments there is a huge landslide about 30 chariots behind Pharaoh, and all the remaining vehicles in the column either tumble to their tragic and untimely deaths, or are blocked by the now-impassable road. So – Rameses is left with about 30 chariots out of the 1,000 that departed the Egyptian capital. 400,000 Israelites ought to be able to make quick work of them.

But when Pharaoh reaches the beach somehow all his 1,000 chariots have miraculously re-appeared. Someone was not counting properly! Yeah, I know it’s just a movie. But I was chuckling over the movie’s continuity error while still enjoying the action. And the action in Exodus: Gods and Kings is superb!

Crossing the Red Sea at Nuweiba, not the Straits of Tiran

At one point Moses brings out a hand-written map showing his planned route from Egypt back to his wife Zipporah in Midian. Maybe nobody else in the audience cared, but I instantly recognized the route after studying that geography for five years. Moses, generations of biblical scholars would gladly trade several chapters of Leviticus for just one glance at your map! The traditional route of the Exodus is generally agreed, but there are other proposals.

Between Migdol and the Sea (Drews 2014) Figure 11-1 with lines added in cyan showing routes from the movie Exodus: Gods and Kings (2014). Copyright 2014 by Carl Drews.

My book Between Migdol and the Sea (Drews, 2014) provides a map of the Sinai peninsula in Chapter 11 (right). The traditional route is marked here in red and green. In Ridley Scott’s Exodus, Moses plans to take the cyan (light blue) route down the west coast of Sinai and cross the Straits of Tiran (dotted cyan). But he takes a detour through the Sinai mountains and gets stuck at Nuweiba instead (solid cyan). In the movie the Israelites cross the Red Sea from Nuweiba over to modern Saudi Arabia.

There are a couple of problems with this scenario. An earlier scene shows Moses splashing across the “Straits of Tiran” on his way to meet Zipporah. But this strait in real life is not like Adam’s Bridge across the Palk Strait from India to Sri Lanka, oh no! The Enterprise Passage in the Straits of Tiran today is 250 meters (820 feet) deep.[Between Migdol and the Sea, page 179] Nobody will be splashing across there.

The underwater ridge at Nuweiba is 765 meters (2,510 feet) deep.[Migdol, page 179] That would be quite a hike.

How Not to Communicate Science

This little vignette was actually pretty funny, especially for me. Rameses is getting understandably tired of the Plagues, and he calls in various advisors to learn how to stop the plagues, or at least to predict when they will end. Bad advice results in immediate execution. One of these advisors is a Scientist who has not taken the seminar on How to Communicate Science. He gleefully launches into a technical discussion of how the crocodiles churned up the water and made it turn red, how all that extra sediment caused the fish to die and the frogs to multiply. Rameses knows this already and scowls at Scientist, wondering when he’s going to come to the point. “And what comes next?” asks the Scientist happily. “Flies!” retorts Rameses in disgust, swatting at the hundreds of flies swarming around him. “Yes!” answers the Scientist, obviously pleased that his students are following the lecture.

The next shot shows the Scientist on the scaffold about to be executed.

In science communication we talk about Framing the Message. Framing means to go beyond the facts; your audience wants to know why these facts matter and how they are relevant to their own concerns. In climate science, a government audience wants to know how society will be affected, not just how many degrees the temperature will increase.

Meteorite and Tsunami

In Exodus: Gods and Kings, the parting of the Red Sea is accomplished by a flaming meteorite that falls into the sea beyond the horizon. This impact causes a tsunami in which the sea draws back for the Israelites to cross, then returns in a giant wave while the Egyptian chariots pursue. In the movie God sends the meteorite at the right place and time for Moses to lead his people across, so of course this is full-on theistic astronomy. Ridley Scott does not fall into the “God of the Gaps” fallacy that seems to plague certain atheist bloggers! Good for him.

The Bible says the east wind drove back the water all night long (Exodus 14:20-21). But would a meteorite impact also work? The answer is: not likely. For the 2004 Indian Ocean tsunami that struck Indonesia, there were three huge waves over 1.5 hours. The wave period from drawback through the return surge was about 30 minutes. There have been some tsunamis with a longer wave period, but the basic wave cycle is measured in tens of minutes, not hours. At the Nuweiba crossing Moses and the Israelites would have to descend 2,500 vertical feet and then crank up the other side back to sea level, all in 30 minutes. The Colorado Mountain Club uses 1,000 feet per hour as a rule of thumb when climbing fourteeners (Between Migdol and the Sea, page 166). A tsunami simply does not provide enough time to make the crossing.

But the wave action is spectacular! Exodus: Gods and Kings does action very well.

Go see it!

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God’s role in crossing the Red Sea

Certain bloggers have begun to misrepresent my religious views on how God works through science and the natural forces. It’s time to post a clear statement.

Exodus 14:20-21 states:

Then Moses stretched out his hand over the sea, and the LORD drove the sea back by a strong east wind all night and made the sea dry land, and the waters were divided.
(Exodus 14:21 ESV)

We may summarize the Exodus passage as follows:
1. God sent the east wind.
2. The wind moved the water.

Part 1 is the realm of Theology since it involves Divine action. I would love to know if God used a low-pressure system here, but without further description I cannot tell.

Part 2 is the realm of Science. Wind moving water is what the COAWST ocean model calculates, and this is what I published in PLoS ONE in 2010.

If anyone wishes to replace Part 1 with a scientific statement and hypothesize how Moses knew where to stand at just the right time, they are free to submit a manuscript to their favorite scientific journal. Since the Bible says God sent the wind, I’ll stick with Part 1 as stated.

For readers of Funmurphys: the Blog who wish to know how God works through science, I recommend the following books:

“Finding Darwin’s God” by Kenneth Miller.
“The Language of God” by Francis Collins.
Anything by Karl Giberson.

These three Christians (and others) receive harsh criticism from Young-Earth Creationists and New Atheists alike. I am proud to be in their august company in one small way.

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Historicity of the Exodus

My new book Between Migdol and the Sea (2014) argues strongly in favor of the historicity of the Hebrew Exodus from Egypt. A large group of Semitic Shasu really did depart from New Kingdom Egypt, make their way across the Sinai wilderness, and invade Canaan. Their recollections of that experience are contained in the biblical book of Exodus.

I present information from scholarly sources in support of the historical Exodus, and include some of my own research as well. Migdol makes five major points:

1. General archaeological support for Exodus

The general background of the narrative in Genesis 37 through Exodus is well-supported by archaeology. Chapter 9 of Between Migdol and the Sea cites Finkelstein and Silberman’s book The Bible Unearthed:

One thing is certain. The basic situation described in the Exodus saga – the phenomenon of immigrants coming down to Egypt from Canaan and settling in the eastern border regions of the delta – is abundantly verified in the archaeological finds and historical texts. From earliest recorded times throughout antiquity, Egypt beckoned as a place of shelter and security for the people of Canaan at times when drought, famine, or warfare made life unbearable or even difficult. (F&S Unearthed 2001, pages 52-53)

2. Realistic number of Israelites

The population estimate of “millions of Israelites” is wildly incorrect. This number throws off everything else. Because bloggers and Wikipedia editors think they have to find traces of millions of people, naturally the Exodus tale seems far-fetched. Chapter 8 calculates a total population of 36,000 using four proxy measures of the Hebrew population found in the biblical text. The revised number is much more in accord with historical realities of Egypt and Canaan during the Late Bronze Age. If you read of someone discussing “millions of Israelites” who allegedly took part in the Exodus from Egypt, that person is not a serious scholar.

3. Archaeology cannot tell us everything

Archaeology has limitations. Archaeology is not the only window into the past. One puzzle of the Sinai wandering is the apparent lack of remains from the Hebrew passage through the wilderness. However, as Professor Kenneth Kitchen points out, “tented wanderers like the Hebrews (and others) have commonly left no surviving traces.” (Reliability Old Testament 2003, p. 191) Migdol Chapter 9, p. 218-219, provides an additional example drawn from my own travel in the Colorado wilderness.

Archaeology is neither the only nor the final word on ancient history. Literature, geography, demographics, genetics, physics, chemistry, and even coastal oceanography all have much to say about history. A combination of disciplines provides the most reliable approach to evaluate the historicity of the Exodus. I make this recommendation throughout Between Migdol and the Sea.

Israel Finkelstein and Neil Silberman are fine sources as archaeologists, but their handling of the Old Testament as literature is poor. Kitchen agrees with me (Reliability 2003, p. 464). For example, F&S claim that “the Genesis stories revolve (mainly) around Judah” (Unearthed p. 44, 46), and this idea forms a substantial part of their Josiah Hypothesis. But their claim is not correct. The Genesis stories revolve around Jacob/Israel, Abraham, and then Joseph in that order. Judah the Patriarch comes in at a distant tenth (Migdol 2014, p. 225-227).

4. Accurate picture of Egypt during the New Kingdom

Exodus 1:11 reports that the Hebrew workers built the store-cities of Pithom and Raamses. Pithom and Pi-Rameses (modern Tell el-Retabeh and Qantir) were indeed occupied during the New Kingdom reign of Pharaoh Rameses II (Hoffmeier Sinai 2005, p. 57, 64)(Kitchen Reliability 2003, p. 257, 256). The city of Pi-Rameses flourished from about 1270-1120 BC, after which Tanis replaced it in prominence. These and other examples (Migdol, p. 245-249) show an accurate knowledge of Egypt during the Ramesside period that would be very difficult to obtain in Jerusalem during the reign of King Josiah (~620 BC).

5. Narrative of the crossing is scientifically accurate

Passage of the Jews through the Red Sea, 1891 painting by Ivan Aivazovsky.

Passage of the Jews through the Red Sea, 1891 painting by Ivan Aivazovsky.
Wikimedia Commons: http://commons.wikimedia.org/wiki/File:Aivazovsky_Passage_of_the_Jews_through_the_Red_Sea.jpg

Between Migdol and the Sea Chapter 3 presents a history of researchers and non-scientists who realized (with some surprise) that the crossing narrative in Exodus 14 matches a weather event known as wind setdown. Chapters 4 and 5 describe how my own research revealed more details of the Israelites’ escape through the Red Sea (Hebrew yam suf), including a likely site at Tell Kedua in the eastern Nile delta.

Exodus 14 is an accurate description of a wind setdown event. Migdol Chapter 10 notes that the Kedua Gap is about the only spot where the waters could divide. What is an accurate account of a rare weather event doing in a Bronze Age text? The simplest explanation is that someone was near the Migdol cluster of forts and observed it happen. For this tale to make it to Canaan, someone had to depart from Egypt and take the story with them. That is an Exodus.

Book

Obviously there is much more detail in Between Migdol and the Sea than the summary provided here. The book includes a list of 167 References, many of them to scientific and scholarly publications. For readers of Funmurphys: the Blog who are interested in the Hebrew Exodus from Egypt, this book will give you plenty of solid information to consider. It makes a great Christmas present!

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Kindle e-book: Between Migdol and the Sea

The Kindle version of Between Migdol and the Sea is complete! Book readers who prefer electronic viewing to print can now learn all about Crossing the Red Sea with Faith and Science on their Kindle readers.

Alert followers of Funmurphys: the Blog will note that almost two months have passed since the print version of Migdol was published. You may correctly infer that preparing the Kindle version of Migdol was challenging. There are several reasons for this. A technical book is not a romance novel. It was not a problem to include my numbered citations in the text, and place a list of published references at the end of the e-book. But three scientific aspects of Between Migdol and the Sea gave me some trouble:

  • Figures
  • Tables
  • Formulas

Figures

Exodus route from Egypt to Canaan

Between Migdol and the Sea: Chapter 11 Figure 1. Traditional route of the Exodus from Egypt into Canaan. Copyright 2014 by Carl Drews.

I included a number of illustrations in my book, some in color and some in black and white. These figures help the reader to understand the science and geography of the Hebrew Exodus from Egypt. The problem is that the various Kindle readers have different displays. Some are high resolution (lots of pixels per inch), and some are in black-and-white. The reader can also select a huge font or a tiny font.

I want readers of Between Migdol and the Sea to have a good reader experience, no matter what device they are using. Amazon provides a preview application that simulates what the book draft will look like on various Kindle models. After a lot of fiddling, I decided to set the width of images to 800 pixels and let the Kindle determine how to lay out the page based on its internal algorithms.

Tables

There are various online forums discussing e-book formats, and some of the comments state that certain formats don’t even support tables. Ugh! Scientific writing sometimes requires the presentation of a group of numbers. Do you really want to read a long series of declarative sentences? No, and I don’t want to write repetitive prose either. Fortunately the Kindle models really do support tables. There is a five-column table in Chapter 7 (Following the Trail) that looks best if you rotate your device into landscape orientation.

Formulas

In Chapter 8 (Counting the Israelites) I present a revised estimate for the number of men, women, and children who crossed the Red Sea with Moses: 35,750. I really wanted to nail down the number of escaping Hebrews and refute the long-standing canard that there were “millions of Israelites” departing from Egypt during the reign of Rameses II. That huge number was simply messing up everything else, especially archaeology. I included a set of calculations to explain and support my estimate. Here is an example:

Formula 8-4

Between Migdol and the Sea: Chapter 8, formula 4.

If you don’t like to read all these numbers, you can get the idea just from the plots. Formulas don’t flow and re-size as well as plain text does in an electronic book. I converted my formulas to images, and the result is satisfactory.

Flames of Desire

Flames of Desire represents the archetypal romance novel. I just made up that title, but there is an actual romance novel by that name if you care to search for it. As a scientific writer I have this idea that the most difficult part of formatting and printing a romance novel is to get a good photo of Fabio and Megan Fox for the front cover. Famous models are expensive, and so are long wispy evening gowns; plus you have to put some Medieval castle into the background. Maybe they just green-screen those looming thunderclouds. But the text of the book interior is just text; it flows from page to page when the reader changes the font size or uses a larger device. There are no figures, no tables, and no formulas in Flames of Desire. The Kindle version should be easier to produce than the print version.

But I could be wrong. For all you romance novelists out there, please feel free to let us know in the comments section below what challenges you encounter in preparing Flames of Desire for print and electronic readers. Tell us about your craft! Here at funmurphys we are happy to hear and learn from your different perspective.

Boulder Book Store

For book buyers who prefer to shop locally, Between Migdol and the Sea is now available at the Boulder Book Store on Pearl Street in Boulder, Colorado.

Exodus: Gods and Kings

The new movie by director Ridley Scott will be released to U.S. audiences on December 12, 2014. I am posting a humorous series of blogs that evaluate the movie with respect to science and history. To read more about Exodus, please visit Carl Drews at Google Plus.

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New book about the Hebrew Exodus from Egypt

I have published my first book! The title is:

Between Migdol and the Sea: Crossing the Red Sea with Faith and Science

The book describes in greater detail the research about wind setdown that I published at PLoS ONE four years ago. The biblical context for Between Migdol and the Sea is Exodus 14: the narrative of Moses parting the waters of the yam suf at God’s command. The first two chapters tell what it might have been like to be present on that fateful night, with the east wind howling and the Egyptian chariot force in hot pursuit.

The Kedua Gap

Figure 7-3. Flying over the Kedua Gap with Google Earth.

The book presents the Tanis hypothesis, which is my designation for the crossing site at the Kedua Gap in the eastern Nile delta. The Exodus occurred in the time period 1251 – 1245 BC. There were not millions of Hebrews who crossed the Red Sea, but approximately 35,750 men, women, and children in the departing company. Between Migdol and the Sea provides evidence for the historicity of the Exodus; although mythical elements have been added to the original account in later retelling, the departure from Egypt and the Red Sea crossing really happened. I provide latitude-longitude coordinates and maps so that readers can examine these places for themselves.

These scientific details are woven through a story of scientific discovery; from making an embarrassing mistake during my first semester of graduate school, to finding an old map in the University of Colorado Library, to discovering Open Access publishing. The world reacted to the PLoS ONE paper with every emotion from enthusiasm to hostility. The book concludes with a chapter explaining how faith and science are compatible and should be in harmony.

I hired a free-lance editor to review the text. Other friends read portions of the book and give me their comments. Technical details about the ocean model were published at the peer-reviewed scientific journal PLoS ONE in two papers.

Miracles

I see no need for physical laws to be suspended in order to make the waters part and leave a dry passage across the yam suf. The COAWST ocean model calculates a physical scenario that is consistent with the narrative in Exodus 14. A coastal lagoon (ancestral Lake Manzala) shifts to the west under wind stress and splits around a peninsula, leaving a temporarily dry land bridge with water on both sides of the Israelites.

The miracle is in the timing; a fortuitous weather event arrives at the right moment to deliver Moses and his company from destruction. In similar fashion, the Apostle Peter knew that Jesus had directed the miraculous catch of fish (John 21:1-14), even though the law of gravity remained constant throughout the Galilee event. Of course the crossing of the Red Sea is a miracle!

LibreOffice for Book Writing

Printed books are complicated. Do you know what is a book’s “trim size”? Do you know what image “bleed” means? Do you know the difference between the gutter margin and the edge margins? I didn’t know these things a couple of months ago; now I do.

I created the book entirely with LibreOffice, including the print layout. I wrote each chapter as a separate document, then combined them with a Master document that supplied the title pages and publisher’s page. Since Between Migdol and the Sea is a technical scientific book, I included figures, tables, citations in each chapter, and an overall Index at the back of the book. At times I wished I were writing some Flames of Desire romance novel, so I wouldn’t have all these extra elements to deal with. But LibreOffice was suitable for the task. From time to time I did Google for hints about how to accomplish certain publishing tasks that puzzled me.

A couple of lessons for anyone who wants to Indie Publish a technical book:

  1. It’s okay to compose the text in 8.5×11 size paper, but you should create your figures in the 6×9-inch trim size from the beginning. Line drawings scale pretty well; labels do not. Same thing for tables.
  2. Try to do things the standard way that book publishers do them. Get a comparable book and examine it closely. I thought it would be easier on the reader to group my citations for each individual chapter into a compact list of References at the end of the chapter. That way each chapter reads like a complete published paper. Maybe LibreOffice can do this, but I could not figure it out. So I ended up with a single multi-page Bibliography containing all my references at the end of the book before the Index, just like everybody else does it.

CreateSpace at Amazon.com

Although I value what literary agents and book publishers can contribute to the publication process, for reasons of timing I chose the Independent Publishing route. I selected Amazon’s CreateSpace as my self-publishing platform for Between Migdol and the Sea. CreateSpace worked out well for me.

The basic approach is to create one PDF to represent the entire book interior in black-and white, and a second PDF to represent the book cover in color. CreateSpace must handle a lot of indie authors, because they have a well-polished web site and an extensive user community. I answered a few of my questions by poking around in the user forum.

The CreateSpace web tools reminded me of PLoS ONE; there always seemed to be a check box or option or help message to get you what you need. This is unlike the traditional scientific journals, who leave it up to the author to figure out how to generate a tiff image file. CreateSpace has templates for the book size and cover, and an automated reviewing tool to look over your interior PDF before printing the first proof. After some fiddling and multiple uploads, my manuscript started to look like a real book!

I am still working to prepare the Kindle version.

Print On Demand

A traditional publisher makes a “print run” of several thousand books and then offers them for sale through various outlets (mail order, bookstores). I’ll make up some numbers here for illustration: let’s say that each book in the print run costs the publisher $5. The initial setup costs for a print run are high, but the marginal cost of each book is low, so they have to print thousands of books to keep the cost per unit down. If the book costs $20 list price, then everyone in the chain can make some money, including the author.

The problem with a print run is inventory. The publisher may have thousands of printed books in storage until they (hopefully) sell. Bookstores have to keep books in stock. If the author and publisher want to release a new edition, they have to wait until all the unsold inventory is cleared out of the pipeline. Inventory can pose a problem.

Print On Demand (POD) is an online printing technology whereby each individual book is printed when an order is received. When the online reader (that’s you) clicks the Purchase button, some electronic printer in some light manufacturing facility downloads the cover PDF and interior PDF, prints them out, automatically folds the cover around the pages, glues them together, and cuts them off to the trim size – Ka-Chunk! Then the completed book slides down a chute along with the mailing label. Some human being wraps the book and ships it, or maybe the packaging is automated, too.

Let’s say that each Printed On Demand book costs the publisher $10 to manufacture. (I don’t think POD can be as cheap as a multi-thousand-book print run, but maybe someday.) The book has to have a list price near $20 to compete with the traditional publishing method. There appears to be less money for everyone in the POD publishing chain, but there are no expensive warehouses full of expensive inventory any more. That’s how Print On Demand can compete with traditional print runs.

Furthermore, CreateSpace can afford to take a chance on unknown first-time independent authors like me, because they don’t have to risk getting stuck with thousands of unsold books. And that is why Indie Publishing has gained some traction in the book publishing industry.

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Lake Erie Is My Laboratory

I recently published another scientific paper in the peer-reviewed journal PLoS ONE. Since PLoS ONE is Open Access, anyone can read the paper without a journal subscription:

Using Wind Setdown and Storm Surge on Lake Erie to Calibrate the Air-Sea Drag Coefficient

The publication date was August 19, 2013. Here is the full citation:
Drews C (2013) Using Wind Setdown and Storm Surge on Lake Erie to Calibrate the Air-Sea Drag Coefficient. PLoS ONE 8(8): e72510. doi:10.1371/journal.pone.0072510

The purpose of the research was to validate the results of the COAWST ocean model (Coupled-Ocean-Atmosphere-Wave- Sediment Transport Modeling System) with actual observations of storm surge. The paper has a lot of figures that we call “spaghetti plots;” these are charts that show multiple time series on a single plot. We call them spaghetti plots because they look like a bunch of noodles stretched from left to right across the page:

Figure 11. December 2006: Wind setdown and storm surge, with experiments E4, E18, E21, and E23. From Drews (2013).

Figure 11. December 2006: Wind setdown and storm surge, with experiments E4, E18, E21, and E23. From Drews (2013).

In Figure 11, the black line represents the observations of water level taken at the Fermi power plant at the western end of the lake, and at Buffalo at the eastern end of the lake. The colored lines represent various model runs. The goal here is to get the colored lines to match the black line as closely as possible. This is done by adjusting the COAWST model parameters in a sensible manner. Adjustments include: the numerical formula for the air-sea drag coefficient, the bottom drag coefficient, the influence of waves, and the algorithm used to simulate wave action, and the presence of ice on the lake.

Why Lake ErieLake Erie happens to be a near-perfect natural laboratory for conducting this kind of experiment. The lake is long, shallow, and subject to strong winds from the west that cause the lake water to slosh back and forth like a big bathtub. Since the lake is surrounded by populated areas in the United States and Canada, there are many weather stations along the coastline that provide archived meteorological data. Lake Erie is also an important seaway for international commerce, and NOAA provides accurate measurements of tides and currents at major ports on the lake. I can run simulation experiments with confidence in the observations that I am trying to match.

The paper describes two windstorms on Lake Erie: December 1–2, 2006 and January 30–31, 2008. Lake Erie is 400 km long and 90 km wide. Since I don’t have a gigantic fan big enough to blow the lake water around and measure what happens, I have to wait for nature to do the blowing instead. Fortunately for me, these windstorms occur often enough to provide several usable data sets. Better yet, there were no human fatalities in either of these storms.

The potential result of the research is a more accurate model for storm surge. When building coastal defenses such as floodwalls, it is crucial to know how high the ocean will rise when the next hurricane comes ashore. The difference between building a seawall one foot higher than the maximum surge, and one foot lower than the maximum surge, can be disastrous.

Moses Crossing the Red Sea

In 2010 I published another paper on wind setdown and storm surge:
Dynamics of Wind Setdown at Suez and the Eastern Nile Delta

That earlier paper reported the emergence of a land bridge in the eastern Nile delta under certain conditions of wind speed and direction. For readers of funmurphys who are interested in Moses crossing the Red Sea, the ocean model indicated that Moses would have 4 hours to lead the Israelites across the yam suf.

At the time, I suspected that the estimate of 4.0 hours was somewhat conservative; that is, the dry passage probably would have stayed open for a longer period of time. There were several factors that we did not include in the 2010 research, such as waves and a drag coefficient more suited to coastal conditions. I had a hunch that these additional factors would increase the duration of the passage. However, the rigorous nature of scientific publishing requires that scientists cannot publish more than a few paragraphs of speculation; peer-reviewed journals require concrete results supported by evidence from observations and computer models.

The Lake Erie research provided a chance for me to test my earlier hunch. I was pleased to find that my hunch was correct; but better yet, that I could provide a revised number for the crossing time. Here it is: Moses had over 8 hours to evacuate all the Israelites from Pi-Hahiroth to safety at Tell Kedua on the other side of the yam suf. Or, for scholars who are more interested in the wind speed, an east wind blowing at 24 meters per second is sufficient to hold open the dry passage for 4 hours (the 2010 paper reported 28 m/s).

Figure 13. Corrections applied to the Lake of Tanis and the Kedua Gap. From Drews (2013).

Figure 13. Corrections applied to the Lake of Tanis and the Kedua Gap. From Drews (2013).

I like this result, because it shows that there is some engineering tolerance to the solution. Although God can of course do anything He wants to do, as an engineer I am happier with a answer in which the parameters can vary a bit and still work. The 2013 paper demonstrates that the Kedua Gap is a more robust reconstruction of Exodus 14 than originally thought.

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The Science Behind Biblical Events

That was the title of the article in Newsmax magazine, December 2012, pages 64-66. The subtitle was:

Researchers use new technology to search for the truth behind the stories in the Bible.

This article gave several examples of scientific research that supports certain biblical accounts. Newsmax reporter Jack Penman led off by describing my research about Moses and the Israelites crossing the Red Sea. I published a paper in the peer-reviewed journal PLoS ONE describing the meteorological phenomenon of wind setdown occurring at a place called the Kedua Gap in the eastern Nile delta. A strong wind blowing overnight can indeed cause the waters of the yam suf to recede and divide.

Newsmax covered the following research topics:

  • Parting of the Red Sea during the Hebrew Exodus from Egypt
  • The 10 Plagues
    Author Graham Phillips attributes the plagues visited upon Egypt during the Exodus to the eruption of the volcanic island Thera (Santorini) in Greece. I am more familiar with biblical scholar Kenneth Kitchen, who points out that the first nine plagues correspond to a physical sequence of catastrophic natural events following a high Nile. (See “On The Reliability of the Old Testament” (2003), Table 18 on page 251.)
  • Resurrection of Lazarus
    The article cites the resuscitation of a woman declared medically dead. To me, this example does not match the details of the story recorded in John 11. Nevertheless, we Christians are supposed to follow Jesus’ example, and if we can prevent premature death by medical means, that’s all to the good!
  • Destruction of Sodom and Gomorrah
    The article mentions a hypothesis that the two sinful cities were destroyed by an asteroid, and the event was recorded on a Sumerian clay tablet. You can read more at this article, or search for these keywords: Sodom Gomorrah asteroid Sumerian astronomer Alan Bond Mark Hempsell Köfels.
  • Burning Bush
    Colin Humphreys suggested in his book “The Miracles of Exodus” (2004) that the burning bush was above a volcanic fissure emitting hot gases.
  • Noah’s Flood
    The article cites William Ryan and Walter Pittman and the Black Sea Flood as being the probable source of the Flood story in Genesis and the Gilgamesh Epic.

Whether these ideas will withstand further research and scientific scrutiny remains to be seen, and this is true of all hypotheses. What is notable about the Newsmax article is that they have taken neither extreme position:

  1. Every biblical event occurred exactly as some fundamentalists interpret the King James Version of the Bible.
  2. The Old Testament contains no valid history prior to the Babylonian exile; it was fabricated by Hellenic Jews to create a fictional glorious history.

With regard to extreme position 1, Ryan and Pittman understand the Flood to be a local flood, not a global one. The Black Sea flood was a traumatic event for the people of the time, and they carried those memories forward in their oral history. There is no young-earth Flood Geology here.

Extreme position 2 is rejected by the findings of science. Not only are the biblical narratives scientifically plausible and difficult for ancient bards to fabricate, but research confirms important details of the stories. The plagues follow a natural chain of environmental events; the author of Exodus is not merely stepping through the Egyptian pantheon.

Reporter Jack Penman concludes: “maybe science and religion can better coexist.” Amen to that!

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Improper use of Scripture by Senator James Inhofe

Senator James Inhofe (Republican, Oklahoma) says that the Bible refutes climate change. From Taegan Goddard’s Political Wire, March 9, 2012:

On a radio show yesterday, Inhofe explained: “Well actually the Genesis 8:22 that I use in there is that ‘as long as the earth remains there will be seed time and harvest, cold and heat, winter and summer, day and night,’ my point is, God’s still up there. The arrogance of people to think that we, human beings, would be able to change what He is doing in the climate is to me outrageous.”

Senator Inhofe’s comments were in reference to his recently published book: The Greatest Hoax: How the Global Warming Conspiracy Threatens Your Future.

What we have here is a politician using the Bible to make a political point. Unfortunately, Senator Inhofe is wrong. He claims that since God controls the earth’s climate, we human beings cannot possibly change the climate, and it’s arrogance to think that we can. But Genesis 8:22 does not say that.

This verse occurs at the end of the Flood story. Here is Genesis 8:20-22 in the English Standard Version:

20 Then Noah built an altar to the Lord and took some of every clean animal and some of every clean bird and offered burnt offerings on the altar. 21 And when the Lord smelled the pleasing aroma, the Lord said in his heart, “I will never again curse the ground because of man, for the intention of man’s heart is evil from his youth. Neither will I ever again strike down every living creature as I have done. 22 While the earth remains, seedtime and harvest, cold and heat, summer and winter, day and night, shall not cease.”

God’s covenant here refers to what God has promised to do, not what mankind can do. God will not send another Flood that destroys civilization. Verse 22 is not a guarantee that God will preserve the earth from the consequences of man’s poor stewardship.

Suppose we were to take this covenant as some kind of “assurance of stability” as James Inhofe wants us to do. What exactly does verse 22 say? And what does it mean? Here are the points God makes about the earth’s climate and weather system:

  • seedtime and harvest: There will always be seasons.
  • cold and heat: There will always be variation in temperature.
  • summer and winter: There will always be seasons.
  • day and night: The earth will continue to rotate.

No climate scientist anywhere is suggesting that seasons will cease. This is a straw-man argument by Senator Inhofe. No climate scientist anywhere is suggesting that temperature variation will cease. Scientists are suggesting that there will be more heat and less cold. Genesis 8:22 does not contradict that.

Is there any indication in the Bible that humans can drastically affect the earth? Yes, there is. Consider Genesis 1:28:

28 And God blessed them. And God said to them, “Be fruitful and multiply and fill the earth and subdue it, and have dominion over the fish of the sea and over the birds of the heavens and over every living thing that moves on the earth.”

God’s command in Genesis 1:28 to “subdue the earth” is meaningless if mankind cannot possibly accomplish this. But God does not give meaningless commands. According to the Bible, we are capable of changing what’s going on here. Our actions have effects and consequences.

Stewardship of the earth

We are stewards of the earth. We are supposed to take care of this planet. But that relationship as stewards is not for our benefit, contrary to what Rick Santorum has suggested. Consider the Parable of the Wicked Vineyard Tenants in Luke 20:

13 Then the owner of the vineyard said, ‘What shall I do? I will send my beloved son; perhaps they will respect him.’ 14 But when the tenants saw him, they said to themselves, ‘This is the heir. Let us kill him, so that the inheritance may be ours.’ 15 And they threw him out of the vineyard and killed him. What then will the owner of the vineyard do to them? 16 He will come and destroy those tenants and give the vineyard to others.”

The tenants don’t own the vineyard. The vineyard is not for their benefit! The Master owns the vineyard. “The earth is the Lord’s and the fullness thereof, the world and those who dwell therein,” (Psalm 24:1, ESV) We really can mess up the earth through poor and sinful stewardship, and if we do, we really won’t like what happens when the Master returns.

Christology, not climatology

Senator James Inhofe would do much better to read the Bible not from a climatological viewpoint, but from a Christological viewpoint. All Scripture points to Jesus Christ. The Flood was an early attempt by God to rid the earth of sin. The human race was re-started with a righteous man (Noah), but fell back into sin again. The Law was given at Mt. Sinai, but that too failed to make mankind righteous (Romans 3:19-20). But Jesus Christ came, and Christ succeeded in making mankind righteous. (Romans 10:4)

Genesis 8:22 does not point to climate science. Genesis 8:22 points to Jesus Christ.

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“Proving God” on the History channel

Wind setdown and Exodus 14

On December 13, 2011, I appeared in a TV documentary titled “Proving God” shown on the History Channel. My section of the program described how scientists investigate the narrative of Moses parting the “Red Sea” in Exodus 14. Sir Colin Humphreys and I explained how the meteorological phenomenon of wind setdown matches the Biblical account. I am providing here a transcript of what I said on the program; since this blog represents Fair Use in a scholarly setting, I can only provide a limited section of the text.

Ancient Nile delta

Figure 1. Reconstruction of the Nile delta by James Rennell, based on the writings of Herodotus. The black rectangle shows the site of Drews and Han's proposed crossing site at the Kedua Gap (30.9812 North, 32.4553 East). This is Figure 2 of Drews Carl, Han Weiqing, 2010 Dynamics of Wind Setdown at Suez and the Eastern Nile Delta. PLoS ONE 5(8): e12481. doi:10.1371/journal.pone.0012481.

Narrator: Atmospheric scientist Carl Drews of the National Center for Atmospheric Research believes Humphreys may be onto something.

Carl Drews: Wind setdown occurs when a strong wind blows over a period of time across a surface of water; and gradually the water moves in the direction of the wind, and pulls away from the shoreline, and so the surface of the ocean moves down. So what you have there is a section of dry land where there was formerly sea bed.

Narrator: Accessing the power of supercomputers, Drews has studied the effect of wind setdown in locations ranging from the Nile, and coastal England, to a pair of such episodes in the Great Lakes in 2006 and 2008.

Carl Drews: Wind setdown is observed about every 5-10 years on Lake Erie. You have these strong storms that come from the west, and they cause storm surge at Buffalo; but on the Toledo side, which is the upwind side, the large sections of the lake will be completely dry. The water will have disappeared over the horizon!

Colin Humphreys: It’s been observed that the difference in height between one end of Lake Erie and the other can be as high as 16 feet. Absolutely staggering, right? You’d expect Lake Erie to be level water, but in a strong wind, blowing for many hours – 16 feet difference!

Reconstructing the event

Narrator: Harnessing data gathered from NASA satellites, Carl Drews creates an ocean model and terrain map of the Gulf [of Tineh], to examine the possible effects of such a storm.

Parting the Sea at the Kedua Gap

Figure 2. Wind parting the waters at the Kedua Gap. The east wind creates a temporary land bridge at Tell Kedua in the eastern Nile delta. This is Figure 1 from Parting the waters: Computer modeling applies physics to Red Sea escape route, press release by University Corporation for Atmospheric Research, September 21, 2010. (©UCAR, Illustration by Nicolle Rager Fuller.)

Carl Drews: I used geological maps, geological surveys, and sediment cores to reconstruct the configuration of lagoons and rivers that were [present] during the Exodus period. Then I ran this on the ocean model with a supercomputer and applied a digital wind to this, a wind blowing at 63 miles per hour. It would be difficult to walk into that kind of wind, but it’s possible. You can make forward progress.

[break]

Narrator: Combining the Biblical account of the crossing with the scientific modeling, Drews constructs a timeline that matches the conditions described in Exodus: the perfect storm.

Carl Drews: The Bible says that this occurred over a night, so – wind blowing for 12 hours suddenly stops, and I find that the waters part, and stay parted for a period of 4 hours. Then they rush back together again.

Narrator: But even given 4 hours to cross the exposed land bridge, it would have been impossible for 2 million Israelites to traverse the Red Sea and escape. Does the scientific evidence disprove the Bible account?

Carl Drews: That would be a lot of people to get through a small space in just 4 hours.

Colin Humphreys: This number is unbelievably large! A lot of people think the Exodus story is made up.

[Humphreys goes on to explain that the word ‘eleph in ancient Hebrew (Strong’s Concordance H505) can mean “thousand”, or it can mean a “company” of soldiers – about 10 fighting men. This re-calculation leads to a total number of 20,000 Israelites of all ages, a much more manageable group of people.]

Narrator: If Humphreys’ new calculation is accurate, it bolsters the case that the Red Sea miracle really did happen.

The return surge

Narrator: From cosmology, and archaeology, to oceanography, researchers from a variety of scientific disciplines have launched a global search to discover quantifiable proof of God. Sir Colin Humphreys and Carl Drews are looking for evidence that will prove that the events described in the Bible actually occurred. Using precise calculations, along with complex computer modeling, each man has detailed a perfect storm scenario which they claim could have caused the parting of the Red Sea, just as described in the book of Exodus.

Tidal bore on the Qiantang river, China.

Figure 3. Tidal bore on the Qiantang river, Hangzhou, China. This image is from Wikimedia Commons at http://commons.wikimedia.org/wiki/File:Tidal_bore_at_the_Qiantang_river,_Hangzhou.jpg.

According to their theory, a phenomenon known as wind setdown caused winds of rare duration and force to peel back the waters long enough for the Israelites to make their way to freedom across an exposed land bridge. But the book of Exodus also describes the sudden destruction of the Pharaoh’s army as they chased the Israelites across the sea bed. To explain this, Drews and Humphreys point to the opposing natural force that can follow extreme cases of wind setdown.

A bore wave. The term defines the phenomenon where a tide returns displaced water with such force that it forms a giant wave of enormous power.

Carl Drews: When the wind stops, suddenly that water comes back again, and you would get these walls of churning water, thundering in! and crushing anybody who is left in the passage there.

Narrator: Drews’ calculations reveal that a wind setdown powerful enough to part the Red Sea would have unleashed a bore wave of staggering magnitude.

[break]

Narrator: Whether invoked by the hand of Moses, or the natural reaction to wind setdown, a bore wave of this force would have obliterated the Pharaoh’s army in an instant.

Carl Drews: Suddenly they hear this roaring in the distance! Then they look up, and what looks like a mountain of water is bearing down on them from both sides, and from the back.

Colin Humphreys: It sweeps these people back into the sea, which is precisely what the book of Exodus says. So even this little detail in the Exodus fits what we know from modern science.

Theology – faith and science

Narrator: But while these natural phenomena offer a scientific explanation for the events described in Exodus, that alone does not prove God.

Anglican cross

Figure 4. Anglican cross. From Letterkenny Cathedral, by Scolye17 at Wikimedia Commons: http://commons.wikimedia.org/wiki/File:Celtic_Cross_Letterkenny.jpg

Carl Drews: It could be that Moses got very, very, very lucky. It could be that he was a very, very good weather forecaster.

Colin Humphreys: So you may say, Why do we call this a miracle? The reason is because of the timing. They would have been slaughtered!

Carl Drews: It’s a very unlikely event, to happen on a certain night just when you need it. If Moses is that lucky, we should all bet on Moses! (he chuckles)

Colin Humphreys: So I think it’s the timing that shows the hand of God at work.

Narrator: Both Drews and Humphreys agree that the evidence of God is not in the natural events themselves, but rather in their miraculous timing. Ultimately, it is beyond the powers of science to explain how a once-in-a-lifetime storm occurred at the exact place and time to rescue the Israelites.

[break]

Narrator: While their work has narrowed the divide between science and the Divine, these scientists admit that, for the moment, faith is needed to span the last gaps.

Carl Drews: The scientist should be humble and realize when their science cannot go into the supernatural. We only study the natural. So I study the movement of the wind and the water. According to the Bible, God sent the wind at the right time and told Moses to be there.

Further reading

Purchase “Proving God” on DVD from the History channel:
Proving God DVD

Our original scientific paper, published in the peer-reviewed journal PLoS ONE:
Dynamics of Wind Setdown at Suez and the Eastern Nile Delta, by Carl Drews and Weiqing Han, August 30, 2010.

A story by reporter Anna Maria-Basquez in the Denver Catholic Register that explores the theology behind the research:
Boulder scientist’s research affirms parting of the Red Sea, December 15, 2010.

An article that I wrote for Weatherwise magazine to explain the research to a general audience:
Could Wind Have Parted the Red Sea? January/February 2011.

Other news coverage:
Parting the Sea.

Proving God” was produced by Karga Seven Pictures for History.

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Bo Hellström and copyright protection

I have at my desk an interesting and rare book: “The Israelites’ Crossing of the Red Sea”, by Professor B. Hellström, published in Stockholm in 1950. Bo Hellstrom was a professor of hydraulics in Stockholm, Sweden from 1914-1955. From Ian Larsen’s paper:

In 1923 he [B. Hellstrom] receives a grant to study wind driven seiches in lakes, a subject that he will follow on and off for a long time to come. In 1924 he suggest that it was a well timed wind-generated seiche that was to allow Moses and his tribe to cross the Red Sea and subsequently to drown Faraoh and his army. The reader of the Bible will see that Bo Hellstrom’s theory is well covered in the actual text. Hollywood on the other hand got it completely wrong as usual. (Larsen 2003)

A remarkable thing about this particular book is that it contains a hand-written dedication on the inner page by Hellstrom himself. “Professor A.E. Bretting, with best wishes for Christmas and the coming year, from Bo Hellstrom”. He touched the same page that I am touching! I like that.

The study of physical laws underlying the parting of the Red Sea has a long history. The Jewish historian Flavius Josephus in 94 AD urged people not to wonder if the strange narration in Exodus 14 “happened of its own accord”. But as any parent knows, as soon as you tell kids not to do something, they go ahead and do it! Generations of scientists have ignored Josephus’ advice, preferring to follow Psalm 111:2 instead. Samuel Bartlett in 1879 suggested that Moses might have taken advantage of wind-lowered water levels, crossing on a shallow ford southeast of modern Suez. Sir Alexander Tulloch actually observed a wind setdown event on Lake Manzala, which led him to conclude in 1896 that the famous passage took place between the Great Bitter Lake and Lake Timsah.

Professor Hellstrom brought the science of hydraulics to bear on the Exodus problem in 1924. In his lab he constructed a wind tunnel over a trough containing water, roughly modeling the topography of the northern reaches of the Gulf of Suez. He used an underwater sill to provide a dry crossing with water on both sides at Serapeum, the same site suggested by Tulloch. His book shows maps and detailed diagrams and photos of the water-level gauges that he built on the side of his wave tank to measure the water surface accurately. Bo Hellstrom was quite the experimentalist! His diagrams look a lot like mine.

Thus, by means of this laboratory experiment, which admittedly is only approximate, proof was obtained of the fact that it may very well be conceived that the wind uncovered the bottom of the Red Sea at Serapeum. It was possible by means of these experiments and exhaustive theoretical investigations to establish the natural laws which prevail. (Hellström 1950, p. 21)

So I have this fascinating book in my hands, and I would like to share Hellström’s scholarship with the rest of the world. As Dr. Frank J. Little, Jr. has stated, “Our purpose is to return Hellstrom’s Exodus hypothesis to the scientific community, plus quantify and update it in light of newly synthesized evidence.” How can I do that? Bartlett’s book is available through Google Books, and anyone can read it on-line. I had to get Hellstrom’s book through an Interlibrary Loan with California State University at Fresno. That’s a big difference in terms of ease of access! People will find and read Samuel Bartlett quicker and more often than Bo Hellstrom.

Samuel Bartlett died in 1898. His work is now in the public domain, and this is why Google can legally digitize his book and make it available on-line. Bo Manne Hellstrom died in 1967. Sweden has a copyright term of 70 years after the author’s death, so his copyright will not expire until the fair year 2037. And until then, “The Israelites’ Crossing of the Red Sea” will languish in Interlibrary Loan Land. Ick.

If Hellstrom’s book suddenly became an overnight sensation, and if scads of people were clamoring for it and paying thousands of dollars to obtain one of the rare copies, then the Royal Institute of Technology in Stockholm would take notice and starting printing a new edition of the book. They would make lots of money and send royalties to Hellstrom’s heirs, wherever they are now. That’s why copyrights endure long after an author’s death, and the system works well for people like Mark Twain and Walt Disney.

Unfortunately, the copyright system is not serving B. Hellström very well. His book contains scholarly and historical interest, but with all due respect, “The Israelites’ Crossing of the Red Sea” will never be a best-seller like “Huckleberry Finn”. Nor does anyone expect that – scholars are valued for their intellectual contributions, not necessarily for their popularity with the general public. Bo Hellstrom’s work will remain locked up for another 26 years where only a few determined scholars will read it; unlike his predecessor Bartlett, who can be read by any high school student who enters the right search string into Google.

Professor Hellstrom would have benefited from Open Access. It would have increased his scholarly impact. We would still be reading his work and he would get all the credit. Too bad the Open Access movement came too late for him.


Special thanks to Professor Ian Larsen of the Royal Institute of Technology in Stockholm for supplying additional information on Bo Hellström. Larsen adds, “A E Bretting was professor in Hydraulic Engineering in Copenhagen and retired around 1958.” I would love to know how Hellstrom’s book made its way from Copenhagen to Cal State Fresno, but I have enough historical mysteries for one lifetime already!

References:

Bartlett, Samuel Colcord, 1879. From Egypt to Palestine: through Sinai, the wilderness and the south country. Harper, New York, New York, USA.

Drews, Carl, and Weiqing Han, 2010. Dynamics of Wind Setdown at Suez and the Eastern Nile Delta. PLoS ONE, 5(8): e12481. doi:10.1371/journal.pone.0012481

Drews, Carl, 2011. Could Wind Have Parted the Red Sea? Weatherwise, January-February 2011, 64, 30-35. doi:10.1080/00431672.2011.536122

Hellström, Bo, 1950. The Israelites’ Crossing of the Red Sea. The Institution of Hydraulics, The Royal Institute of Technology, Stockholm, Sweden. First published in the Swedish language in 1924.

Larsen, Ian, 2003. A La Recherce du Temps Perdu: The times of J Gust Richert and thereafter. Zentech Belgium, Brussels, Belgium.

Tulloch, Alexander Bruce, 1896. Passage of the Red Sea by the Israelites. Journal of the Transactions of the Victoria Institute (now Faith and Thought) 28, 267-280. The Victoria Institute, London, United Kingdom.

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