Spending Sunday liquifying hydrogen in a test of our equipment before the next #experiment.

I sure wish #Mastodon didn't have the character limit so I could explain more about this for anyone who'd be interested :)

Green lines are temperatures of cold surfaces. Blue line is pressure of hydrogen being fed to it. Notably, the blue line dives as the plate temperature hits the vapor-pressure curve and H2 begins liquifying.

Experimental techniques in low-temperature #physics!
#Thermodynamics!