1.2 - Why electrons and resolution of TEM

Four points are addressed in this video: 1) why using electrons, 2) the resolution of TEM, 3) limitations of TEM, and 4) common and uncommon TEMs. at 00:20, the reason we describe the wavelength of electrons as "relativistic" is that electrons in TEM travel at ~80% of the speed of light. The special theory of relativity needs to be taken into account.