Category Archives: Physics

The scientific tourist #358 — “Little Boy” atomic bomb arming plugs

Courtesy of the Smithsonian Air & Space Museum’s Udvar-Hazy Center, here are two small bits of history you’ve likely never seen before — arming plugs for the “Little Boy” atomic bomb… Continue reading

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Casual Friday — can we survive the Sun’s death?

OK, now that the world has survived a close call with financial disaster (thanks to the U.S.’ House of Representatives), we can entertain ourselves with the physics of real disasters. Say, like when the Sun devours the Earth in another billion years or so. Continue reading

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Casual Friday — the Titanic and the physics of materials

Think that Titanic only sank because it hit an iceberg? Guess again, the physics of steel played a big part as well… Continue reading

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The scientific tourist #287 — scenes from the Radium Craze

Today you get a few pictures from the National Museum of Nuclear Science and History, on the topic of the Radium Craze of the early 20th century… Continue reading

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Casual Friday — the sun’s about to flip!

Well, OK — the sun won’t flip, but its magnetic field is about to. No worries, though, it happens every 11 years… Continue reading

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Casual Friday — water tension and the mysterious water suspension trick(s)

Another fun and educational video from Steve Spangler — this time, some magic tricks you can perform with water… Continue reading

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Casual Friday — balancing nails

Want a fun trick you can perform with a dozen nails and a block of wood? Steve Spangler shows how you can balance 11 nails on the head of one… Continue reading

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Casual Friday — Fiery looping rain on the Sun

Courtesy of NASA’s Solar Dynamics Observatory, here’s a mesmerizing 4 minutes of video… Continue reading

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Casual Friday — how does an LCD monitor work?

Unless you’re perusing this blog using some very old technology, you’re almost certainly reading these words on an LCD (Liquid Crystal Display) monitor. Ever wonder what’s behind the glass (or for a laptop, plastic) outer face of the thing? Bill (“Engineer Guy”) Hammack explains all… Continue reading

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Casual Friday — photographic proof that the moon landings couldn’t have been faked

This video has been getting lots of press in the past week — but in case you haven’t seen it yet, you owe it to yourself to watch… Continue reading

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