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Sleep paralysis, hallucinations and meeting aliens

Sleep paralysis, hallucinations and meeting aliens

Thursday 29th November 2018 9:11 am

Do you get sicker if you pick your nose? How do you know to breathe? Why doesn’t plastic cheese burn?

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Neil: Last week I woke up at night with belly laughter, uncontrollable like rapid machine gun belly laughter. Tonight I woke up with hiccups, uncontrolled hiccups and some farts. I listened to this podcast and all stopped with only one hiccup after about 14 minutes. Then near the end of the podcast I thought of something funny and I started to hiccup and fart again. Then when the thought of what was funny had passed it all started to resolve itself.

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@beakerstreetsci

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@beakerstreetsci
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Water will change its density a little bit with temperature, but ethanol does it 3.7 times better – and the modern liquids in a Galileo Thermometer are better again. This liquid is inside a sealed container – to avoid the effects of the changing air pressure.
Inside the container are a bunch of hollow, weighted glass balls – each carefully calibrated to have a different density, and each with a brass tag indicating the temperature. The single ball that is floating freely indicates the temperature of the liquid.
So what is your favourite super-geek item/collection, and why? And is it useful or beautiful, or both, like the Galileo Thermometer?