Word: cubic
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Dates: during 1930-1939
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More than mere factors the mathematician asks for constant factors. There are not many fundamental ones of them known in the universe. By definition man has taken as standards the atomic weight of oxygen, the length of a meter, the weight of a cubic centimeter of water, and four other items. From observation he has figured very closely the velocity of light, the drag of gravity, absolute zero (459.4 degrees below zero, Fahrenheit) and six others. By deduction there are seven derived constants, like the mass of the hydrogen atom, or of the electron. Then there are six experimental constants...