Mass spectrometer used to accurately measure the mass of molecules.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...o_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...ter_thermo.jpg
Previously:
https://www.homemadetools.net/forum/...328#post154333
https://www.homemadetools.net/forum/...803#post171112
https://www.homemadetools.net/forum/...136#post184425
https://www.homemadetools.net/forum/...781#post171033
https://www.homemadetools.net/forum/...165#post184563
https://www.homemadetools.net/forum/...479#post178140
