Determine the value of the number ABCDE
Determine the value of the number ABCDECorrect answers: 57
The first user who solved this task is Sanja Šabović.
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LaserIn 1960, the first laser was patented (U.S. No. 2,929,922) by Arthur Schawlow and Charles Hard Townes under the title “Masers and Maser Communications System.” What distinguished this invention as the first laser is that it was the first to operate in the visible light spectrum. The patent was assigned to the Bell Telephone Laboratories, where they had done the research. |