Search results
Results from the WOW.Com Content Network
Marvin P. Middlemark held several patents for his inventions; many were lesser known than his famed Rabbit Ears, such as: a water-powered potato peeler (which failed because when done, a large potato was reduced down to the size of a large marble) and a tennis ball rejuvenator that was designed to bring the bounce back to used tennis balls.
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.
Fenton's pictures during the Crimean War were one of the first cases of war photography, with Valley of the Shadow of Death considered "the most eloquent metaphor of warfare" by The Oxford Companion to the Photograph. [13] [14] [s 3] Sergeant Dawson and his Daughter: 1855 Unknown; attributed to John Jabez Edwin Mayall [15] Unknown [e]
The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...
[16] Animal experiments played a significant role in behaviorist research, and prominent behaviorist J. B. Watson, interested in describing the responses of humans and animals as one group, stated that there was no need to distinguish between the two. Watson hoped to learn to predict and control behavior through his research.
February 13 Max Perutz publishes the structure of hemoglobin. [4]John Kendrew publishes the structure of myoglobin. [5]March 5 – British marine biologist Sir Alister Hardy announces his aquatic ape hypothesis, theorising that swimming and diving for food exerted a strong evolutionary effect partly responsible for the divergence in the common descent of humans and other great apes.
Called the Anthropocene — and derived from the Greek terms for “human” and “new” — this epoch started sometime between 1950 and 1954, according to the scientists.
A timeline of United States inventions (after 1991) encompasses the ingenuity and innovative advancements of the United States within a historical context, dating from the Contemporary era to the present day, which have been achieved by inventors who are either native-born or naturalized citizens of the United States.