Word: electronically
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...which may do the enemy as much damage as any that the nation sends overseas-consists of several thousand scientists. In complete military secrecy they all work together in one big building at one big scientific institution on one big problem: wartime applications of and improvements on the electron tube...
...call your attention to a misleading statement made in the article "Seeing by Electron Waves" [TIME...
...author of the article says: "Higher magnification requires shortest possible electron waves, hence higher voltage." As a matter of fact the wave length of electrons accelerated by say 15,000 volts is already roughly 50,000 times smaller than that of visible light. According to the information concerning magnification presented in the article the actual improvement gained by substituting electron waves for light is only 50-fold...
...hesitate calling the electron microscope as it is a magnificent instrument. In view of future developments, however, it has to be admitted at the same time, that with respect to its lenses in their present state, no more favorable comparison can be made than with the microscope as it was at the time of Leeuwenhoek...
...Peter Debye, winner of the Nobel Prize for chemistry in 1936 (TIME:, Dec. 28), is right. What the electron microscope needs is better definition by better focusing of electron waves. But when higher magnification is attained it will be by shorter waves, higher voltages...