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Worlds in Collision

Worlds in Collision is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Worlds in Collision rather than just read about it. In short: Worlds in Collision is a book by Immanuel Velikovsky published in 1950. The book postulates that around the 15th century BC, the planet Venus was ejected from Jupiter as a comet or comet-like object and passed near Earth (an actual collision is not mentioned).

Worlds in Collision — main illustration
Worlds in Collision — illustration

Key takeaways

  • Worlds in Collision belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Worlds in Collision to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Worlds in Collision from memory before moving on to harder problems.

Reference excerpt

Worlds in Collision is a book by Immanuel Velikovsky published in 1950. The book postulates that around the 15th century BC, the planet Venus was ejected from Jupiter as a comet or comet-like object and passed near Earth (an actual collision is not mentioned). The object allegedly changed Earth's orbit and axis, causing innumerable catastrophes that are mentioned in early mythologies and religions from around the world. The book has been heavily criticized as a work of pseudoscience and catastrophism, and many of its claims are completely rejected by the established scientific community as they are not supported by any available evidence.

Publication Worlds in Collision was first published on April 3, 1950, by Macmillan Publishers. Macmillan's interest in publishing it was encouraged by the knowledge that Velikovsky had obtained a promise from Gordon Atwater, Director of the Hayden Planetarium, for a sky show based on the book when it was published. The book, Velikovsky's most criticized and controversial, was an instant New York Times bestseller, topping the charts for eleven weeks while being in the top ten for 27 straight weeks. Despite this popularity, overwhelming rejection of its thesis by the scientific community forced Macmillan to stop publishing it and to transfer the book to Doubleday within two months.

Core ideas In the book's preface, Velikovsky summarizes his arguments:

Worlds in Collision is a book of wars in the celestial sphere that took place in historical times. In these wars the planet Earth participated too. [...] The historical-cosmological story of this book is based in the evidence of historical texts of many people around the globe, on classical literature, on epics of the northern races, on sacred books of the peoples of the Orient and Occident, on traditions and folklore of primitive peoples, on old astronomical inscriptions and charts, on archaeological finds, and also on geological and paleontological material. The book proposes that Venus formed inside of Jupiter, and that around the 15th century BCE, it was ejected from Jupiter as a comet or comet-like object and subsequently passed near Earth, though an actual collision with the Earth is not mentioned. In doing so it changed Earth's orbit and axial inclination, causing innumerable catastrophes which were identified in early mythologies and religious traditions from human civilizations around the world. Fifty-two years later, it again made a close approach, stopping the Earth's rotation for a while and causing more catastrophes. Then, in the 8th and 7th centuries BCE, Mars (itself displaced by Venus) made close approaches to the Earth; this incident caused a new round of disturbances and disasters. After that, the current "celestial order" was established. The courses of the planets stabilized over the centuries and Venus gradually became a "normal" planet. These events led to several key statements:

Venus must be still very hot as young planets radiate heat. Venus must be rich in petroleum and hydrocarbon gases. Venus has an abnormal orbit in consequence of the unusual disasters stemming from its planetary origins. Velikovsky suggested some additional ideas that he said derived from these claims, including:

Jupiter emits radio noises. The magnetosphere of the Earth reaches at least up to the Moon. The Sun has an electric potential of approximately 1019 volts. The rotation of the Earth can be affected by electromagnetic fields. Velikovsky arrived at these proposals using a methodology which would today be called comparative mythology—he looked for concordances in the myths and written histories of unconnected cultures across the world, following a literal reading of their accounts of the exploits of planetary deities. He argues on the basis of ancient cosmological myths from places as disparate as India and China, Greece and Rome, Assyria and Sumer. For example, ancient Greek mythology asserts that the goddess Athena sprang from the head of Zeus. Velikovsky identifies Zeus (whose Roman counterpart was the god Jupiter) with the planet Jupiter and Athena (the Roman Minerva) with the planet Venus. This myth, along with others from ancient Egypt, Israel, Mexico, etc. are used to support the claim that "Venus was expelled as a comet and then changed to a planet after contact with a number of members of our solar system" (Velikovsky 1972:182).

Critical reaction

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Worlds in Collision

Start with the simplest possible case. Write down what Worlds in Collision claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Worlds in Collision before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Worlds in Collision ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Worlds in Collision

In research
Worlds in Collision appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Worlds in Collision in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Worlds in Collision is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1950 English-language non-fiction books, 1950 non-fiction books, Books by Immanuel Velikovsky, so understanding it makes those chapters shorter.
In everyday life
Look for Worlds in Collision outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Worlds in Collision in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Worlds in Collision means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Worlds in Collision out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Worlds in Collision in simple terms?

Worlds in Collision is a book by Immanuel Velikovsky published in 1950. The book postulates that around the 15th century BC, the planet Venus was ejected from Jupiter as a comet or comet-like object and passed near Earth (an actual collision is not mentioned).

Why does Worlds in Collision matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Worlds in Collision?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Worlds in Collision.

Tags

  • 1950 English-language non-fiction books
  • 1950 non-fiction books
  • Books by Immanuel Velikovsky
  • Catastrophism
  • Macmillan Publishers books
  • Pseudohistory
  • Pseudoscience literature

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