Podcast Episode 32: The Wow! Signal

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In August 1977, Ohio astronomer Jerry Ehman discovered a radio signal so exciting that he wrote “Wow!” in the margin of its computer printout. Arriving from the direction of the constellation Sagittarius, the signal bore all the characteristics of an alien transmission. But despite decades of eager listening, astronomers have never heard it repeated. In this episode of the Futility Closet podcast we’ll review the story of the “Wow! signal,” which remains an intriguing, unexplained anomaly in the search for extraterrestrial intelligence.

We’ll also share some more nuggets from Greg’s database of oddities and puzzle over why a man chooses to drive a long distance at only 15 mph.

08/27/2024 UPDATE: It appears there’s a natural explanation for the Wow! signal. New research suggests that the signal occurred when an interstellar cloud of cold hydrogen was stimulated by a strong transient radiation source, causing it to brighten momentarily. This phenomenon is rare but recognized, and it matches the described characteristics of the signal. This natural explanation is much preferable to the hypothesis of an alien technology — aliens may be out there, but we don’t need them to explain what Jerry Ehman saw in 1977. Thanks to listener Eugene Chang for the tip.

See full show notes …

| Podcast

Warm Work

When Jos de Vink retired from a career in computer technology in 2002, he began casting about for an engaging project. His neighbor, a passionate model builder, challenged him to design a working hot air engine driven solely by the heat of a tea or wax light.

De Vink produced a trial engine using the principles of the first hot air engine built by Robert Stirling in 1816. He displayed it for his model club and at a model exhibition in the Netherlands and, encouraged by the response, began to build more.

By 2010 he had created about 27 engines and began construction on several Stirling low temperature difference (LTD) engines that can run on the warmth of a human hand.

“De Vink designs his engines from scraps of brass and bronze from a scrap dealer,” writes Art Donovan in The Art of Steampunk. “The machines demonstrate the possibility of moving large objects using little energy and show different drive techniques used by hot air engine builders for the past two centuries.”

| Technology

Beauty and the Veil

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I have often noticed at the Poetry Society that, after a poem has been read and applauded, when someone dares to get up and inquire what it means, there is likely to be a great outcry to the effect that one cannot analyze a beautiful thing. That is a basic absurdity and represents nothing but a variety of snobbery.

Some will declare indignantly, ‘This thought is too great to be definitely expressed.’ There is truth, I am certain, in the lines ‘whatever deep or shallow, new or old / is clearly thought, can be as clearly told.’ The writer who does not say what he has to say clearly, is shirking his job.

— Arthur Guiterman, quoted in Everett S. Allen, Famous American Humorous Poets, 1968

| Art

Misc

A fragment from Robert Frost’s notebook on “Democracy”:

Cancellation Club. A mens club for rendering womens vote ineffective by voting the other way. One woman said No matter if her vote was offset. She only voted to assert herself — not to win elections.

A word-level palindrome by Allan Miller (from Mad Amadeus Sued a Madam):

MAYBE GOD CAN KNOW ALL WE DO; WE ALL KNOW, CAN GOD? MAYBE …

“I read the Tchechov aloud. I had read one of the stories myself and it seemed to me nothing. But read aloud, it was a masterpiece. How was that?” — Katherine Mansfield, journal, 1922

Dryden’s epitaph on his wife:

Here lies my wife, here let her lie;
Now she’s at rest, and so am I.

(Thanks, Bob.)

| Language · Literature · Poems

The Panopticon

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In the 18th century Jeremy Bentham proposed building a circular prison in which well-lit cells face a central “inspection house” where a single watchman dwells. Because the prisoners can’t see the watchman, they never know when they’re being watched and so must constantly police their own behavior.

Bentham called this “a mill for grinding rogues honest” and listed the benefits in the preface to a 1791 book: “Morals reformed — health preserved — industry invigorated — instruction diffused — public burthens lightened — Economy seated, as it were, upon a rock — the gordian knot of the poor-law not cut, but untied — all by a simple idea in Architecture!”

He was so taken with the idea that he proposed putting it into practice himself. “Allow me to construct a prison on this model,” he wrote to the Committee for the Reform of Criminal Law. “I will be the gaoler. You will see … that the gaoler will have no salary — will cost nothing to the nation.” He spent much of the 1790s pursuing the project, but he couldn’t find enduring support for it and nothing was ever built.

(Thanks, Anna.)

11/27/2016 UPDATE: Cuba built one. (Thanks, Saber.)

| Crime · Society

Math Notes

1 + 2 = 3
1×2 + 2×3 + 3×4 = 4×5
1×2×3 + 2×3×4 + 3×4×5 + 4×5×6 = 5×6×7
1×2×3×4 + 2×3×4×5 + 3×4×5×6 + 4×5×6×7 + 5×6×7×8 = 6×7×8×9

In general, the sum of the first (n+1) products of consecutive n-tuples of consecutive integers is equal to the product of the next n-tuple.

(Thanks, Peter.)

| Science & Math

The Long View

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Image: Wikimedia Commons

Hitler’s chief architect, Albert Speer, favored a “theory of ruin value” in which German buildings would collapse into aesthetically pleasing ruins, like those of classical antiquity. “I want German buildings to be viewed in a thousand years as we view Greece and Rome,” he said.

Using special materials and applying statistical principles, Speer claimed to have created structures that in 1,000 years would resemble Roman ruins. “The ages-old stone buildings of the Egyptians and the Romans still stand today as powerful architectural proofs of the past of great nations, buildings which are often ruins only because man’s lust for destruction has made them such,” he wrote.

Hitler liked to say that the purpose of his building was to transmit his time and its spirit to posterity. Ultimately, all that remained to remind men of the great epochs of history was their monumental architecture, he remarked. What then remained of the emperors of the Roman Empire? What would still give evidence of them today, if not their buildings […] So, today the buildings of the Roman Empire could enable Mussolini to refer to the heroic spirit of Rome when he wanted to inspire his people with the idea of a modern imperium. Our buildings must also speak to the conscience of future generations of Germans.

Hitler endorsed the idea, favoring the use of durable materials such as granite to reflect his soaring ambitions. “As capital of the world,” he said, “Berlin will be comparable only to ancient Egypt, Babylon, or Rome!” Ironically, this came true: When ancient Rome collapsed, its greatest buildings were pillaged for building materials, and when the Russians demolished Speer’s grandiose Chancellery in 1947, its marble was reused to build a metro station.

| History · Technology