Recent comments in /f/mildlyinteresting

ftminsc t1_iybcja0 wrote

Since it’s been covered, I’ll just add that based on the coefficient of thermal of expansion of mercury, a 10mm blob of mercury at 60F will become a 10.003mm blob of mercury at 70F. So while you could design a thermostat based on thermal expansion of a mercury blob, it would have to be seriously precise, and resistant to arcing.

2

Mysterious_Lemon_204 t1_iybc673 wrote

That happened to a Blue Jay that hit my back window. I heard a huge bang, went to see what happened and saw the imprint. Peeked out to see if it was laying on the ground hurt....it was knocked out (or dead).

Then a hawk swooped in and grabbed him right in front of my eyes, and carried him away 😥

It was kind of horrifying seeing that happen!

2