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InDemoVeritas

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Science demos and games, mobiles and cooking.

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Sharp and short, alternating left and right at about 4 Hz, on the side of the tongue back by the molars. Feels like pulling the side of the tongue away from the teeth. It’s a much clickier click than a front of the tongue ‘click’.

I was there for his last Harvard lecture. He ended by saying, “Now I can say it. Humans have instincts!”

In the context of collecting pollutants, entropy is huge. Big light in sky is source of juicy low entropy energy, true, and the big win is the flux of infrared out. Ten times as many photons to carry away the same energy.

It would be pretty boring, proteins bouncing around randomly and occasionally honking up, substrates flying around like rifle bullets sometimes hitting the target, and everything smooshing around in random directions. If you’ve seen Brownian motion, you’ve seen what is happening to all the molecules but at 1/100 the length scale. Nothing stays put. Everything is moving fast and far on the scale of proteins and small molecules.

James Dewar 6 years ago

I was reading that page today, as I am putting together a chapter on using liquid nitrogen in science demonstrations. Thank you, James Dewar, for your marvelous vacuum insulated flask!