Video demo of the UCSD computational mass spectrometry tool.
I have copied the accompanying article from wikipedia. The link to the wikipedia page is given below.
The earliest devices that measured the mass-to-charge ratio of ions were called mass spectrographs because they were instruments that recorded a spectrum of mass values on a photographic plate. Removing several letters, such as the bound morphemes and free morphemes, and combining the lingustical roots of spectr-um and phot-<...