What Is a Bobbin Tank and How Does It Work?
A bobbin tank is a combat engineering vehicle that carries a large reel of reinforced matting and unrolls it to…
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Do Organics on Mars Mean Life?
New NASA-led modeling of Gale Crater mudstones suggests ancient long-chain alkanes were far more abundant than today’s measurements imply, challenging…
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Did the Emergency! TV show Help Build Modern EMS in the U.S.?
Yes. The Emergency! TV show did not invent paramedics, but it powerfully accelerated the growth of modern EMS in the…
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Do Mars Organics Prove Life on Mars?
No, Mars organics do not by themselves prove life on Mars. Mars organics are carbon‑containing molecules that can be produced…
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What Is the Underground Railroad Safe House in Manhattan and Why Does It Matter?
The recent discovery of an Underground Railroad safe house at the Merchant’s House Museum in Manhattan is real, but it…
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Can Deer See UV Light and Do They Use It to Communicate?
New research on photoluminescent deer signposts, ultraviolet sensitivity, and what it means for deer vision and behavior Yes. Deer can…
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What Happened at Times Beach, Missouri and Why Was It Abandoned?
Times Beach, Missouri was evacuated and later demolished after its dirt roads were sprayed in the 1970s with waste oil…
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How Many Calories Does Playing Chess Burn?
The answer to how many calories does playing chess burn is about 70 to 100 kilocalories per hour for an…
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How Thick Is the Milky Way (and What Defines the Galactic Plane?)
The Milky Way does not have a single fixed height, but near the Sun most disk stars lie within about…
