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On March 8, 1930, the first frozen foods of Clarence Birdseye were sold in Springfield, Massachusetts, United States. Alan Blumlein invented the stereophonic sound in 1931. Nestlé releases the first white chocolate candy as the Milkybar.; [9] Ub Iwerks produced the first Color Sound Cartoon in 1930, a Flip the Frog cartoon entitled Fiddlesticks;
In September 1930, George Lehberger devised the basic concept of tilt rotor aircraft, that is, a relatively low disc loading thruster (propeller) that can tilt its axis from the vertical (for vertical lift) to the horizontal (for propulsive thrust). [231] On September 16, 1930, Lehberger was issued U.S. patent #1,775,861. [232] 1930 Car audio
The timeline of historic inventions is a chronological list of particularly significant technological inventions and their inventors, where known. [ a ] The dates in this article make frequent use of the units mya and kya , which refer to millions and thousands of years ago, respectively.
The following articles cover the timeline of United States inventions: Timeline of United States inventions (before 1890), before the turn of the century; Timeline of United States inventions (1890–1945), before World War II; Timeline of United States inventions (1946–1991), during the Cold War
1839, 1930: Discovery of polystyrene by Eduard Simon, was made a commercial product by IG Farben in 1930 [132] c. 1840: Nitrogen-based fertiliser by Justus von Liebig, [133] important innovations were later made by Fritz Haber and Carl Bosch (Haber process) in the 1900s [134] 1846: Discovery of guncotton by Christian Friedrich Schönbein [135]
And while there are plenty of modern-day ways to prepare for any lean times that might come, a surprising number of lessons from the hardships of the 1930s endure. Here are a dozen to guide us ...
Musical instruments invented in the 1930s (3 C, 3 P) R. 1930s in robotics (2 C) S. Science and technology during World War II (8 C, 35 P)
Border patrolmen greeted by Secretary of Labor Frances Perkins. Washington, D.C., 1935. Credit - Bettmann Archive / Getty Images. P resident Donald Trump has promised the largest deportation ...