Preventing the use of rotationally symmetric static fields in this technique can help overcome a limit set by Scherzer’s theorem. The “spot-scan” technique (10[1])is sometimes used to prevent beam-induced motion in this larger technique. (10[1])Samples in this technique may use heavy metals (-5[1])such as tungsten and osmium to undergo (-5[1])a (-5[1])“negative stain.” (10[2])The development of a form of this technique, for which (-5[1])Dubochet, (10[1])Frank, and Henderson were awarded the 2017 (10[2])Nobel Prize (10[1])in Chemistry, generated a “resolution revolution.” (10[2]-5[1])In a form of this technique, the observed specimen is embedded in vitrified (10[1])ice (10[1])before being mounted (10[1])on a grid and fixed (-5[1])via plunging in liquid (10[1])ethane. For 10 points, (10[2])name this imaging technique that comes (-5[1])in “scanning,” (10[3])“transmission,” (10[1])and (10[3])“cryogenic” (10[1])types. (10[1])■END■ (10[10]0[9])