This section contains 439 words (approx. 2 pages at 300 words per page) |
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John Jacob Abel, often called the father of modern American experimental pharmacology, isolated amino acids from blood in 1914.
In 1915 astronomer W. S. Adams used a spectroscope to show that giant and dwarf stars can be distinguished by differences in their spectra.
In 1915 physicist Manson Benedicks found that a germanium crystal converts alternating current (AC) into direct current (DC).
In 1910 William D. Coolidge developed a method for producing drawn tungsten filaments. His method was a major improvement over the pressed filament in use at the time.
In 1910 Eugene Ely became the first pilot to fly an airplane from the deck of a ship. His achievement stimulated interest in the development of aircraft carriers. Engineer John Fisher was credited with the development of the modern washing machine in 1916.
In 1917 Henry Ford introduced a lightweight, reliable, and inexpensive farm tractor.
In 1913 the German Hans Geiger...
This section contains 439 words (approx. 2 pages at 300 words per page) |
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