Wet thoughts

Wet lab. “Wet lab” was a new term to me, I had to look it up – it’s a laboratory with chemicals where there’s spill risk etc. I have a physics background myself and the closest I came to liquids was liquid nitrogen, and when you spill that it just boils furiously and goes away. Don’t do this: if you put your open hand into a dewar of liquid nitrogen, you can hold it under the liquid at -196C/-320F because the boiling on the surface of your hand makes an insulating quilt. It’s a fun game. Closing your hand will create traps and you’ll get horrible burns. Wet market. The Wuhan wet markets entered the vernacular during Covid right? There are new things you need to refer to in a new context. Wet-bulb temperature. "The lowest temperature that can be reached by the evaporation of water" (Wikipedia). It’s a function of air temperature and humidity and humans can’t survive about a wet-bulb temperature of 35C, equivalent to 40C with a relative humidity of 75%. i.e. sweating is no longer…