Tuva or bust .. Richard Feynman “1988 BBC ‘Horizon’ documentary on the Noble Prize winner Richard Feynman and his attempt to visit Tannu Tuva.” (YouTube, 45min)
Sadly, Feynman didn’t make it to Tuva because he passed away from cancer, but his friend Ralph Leighton went on the trip they planned together. Later, Feynman’s daughter Michelle also visited Tuva. Leighton founded the Friends of Tuva. The website is a bit outdated by now, but still contains a lot of interesting information and links.
Veritasium: How Kodak Detected the Atomic Bomb. (YouTube, 13:19min) “Kodak detected the first atomic bomb before anyone else figured it out. Then they made a deal not to tell anyone.” He lists his sources in the video description.
Link via MetaFilter: A government secret that still slightly contaminates your body.
Physics Girl: Insanely Fun DIY Science Experiments at Home with Physics Girl. “So you know when you find yourself stuck at home with a bunch of sodium acetate in the fridge and a laser in your hand? Ugh, Mondays, am I right?”
Actually, I don’t have any sodium acetate, but other than that, I totally get it!
“Space is big. You just won’t believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it’s a long way down the road to the chemist’s, but that’s just peanuts to space.“ Douglas Adams, The Hitchhiker’s Guide to the Galaxy
Harry Evett: Universe Size Comparison 3D (YouTube, 5:07min)
morn1415: Star Size Comparison 2. (YouTube, the interesting part is between 0:41 and 5:53min; the whole video is 6:50min.)
morn1415: Star Size Comparison 3 (Vortex V1). (YouTube, 8:16min)
morn1415: Real Images from the Solar System! (YouTube, 11:22min)
Die Welt physikalisch gesehen: Schneeverlust unter dem Gefrierpunkt. Von Joachim Schlichting. “Manchmal verschwindet die Schneedecke, obwohl das Thermometer unter null Grad anzeigt. Oder aber sie schmilzt selbst bei Plusgraden kaum. Die Temperatur allein ist nicht entscheidend – bei den Vorgängen spielen weitere Kennzahlen eine wichtige Rolle.”
Spoiler: ein Psychrometer ist hier nützlich.
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