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Lunchbox discoveries, Coronavirus, tastebud balls

Lunchbox discoveries, Coronavirus, tastebud balls

Thursday 30th January 2020 11:36 am

In this episode Dr Karl makes a brand new, ground breaking, mind blowing discovery that has changed his life.

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© 2022 Karl S. Kruszelnicki Pty Ltd

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Come along for walks, talks, dinners, drinks and take in all of Beaker Street Festival along the way! Learn more at beakerstreet.com.au/roadtrip/
@beakerstreetsci

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See you in August in Tassie in National Science Week - for the Best Science Festival in the Known Universe (at least).
@beakerstreetsci
www.beakerstreet.com.au

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This Thursday, March 10, 0900-1000 (Sydney time), TikTok Live with Hank Green!

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Instagram post 17891605928078774

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It's #GeekPrideDay! 🎉One of my favourite pieces

It's #GeekPrideDay! 🎉One of my favourite pieces of Science Kit is the Galileo Thermometer (not actually invented by Galileo). It's a lovely combination of Function and Form (+art that is useful, like a tea towel).
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?