Search results
Results from the WOW.Com Content Network
American professor Alexander C. Twining of Cleveland, Ohio patented an early vapor-compression refrigerator in 1853 that was fully capable of producing a ton of ice per day. [50] In 1913, refrigerators for home and domestic use were invented by Fred W. Wolf of Fort Wayne, Indiana with models consisting of a unit that was mounted on top of an ...
The first crewed space flights were made in early 1961, first by Soviet cosmonaut Yuri Gagarin and then by American astronaut Alan Shepard. From those first tentative steps, to the 1969 Apollo program landing on the Moon , to the reusable Space Shuttle , the American space program has created a large display of applied science.
American Insurance Union Citadel. March 21, 1975 ... Columbus Near East Side District: Columbus Near East Side District. May 19, 1978 , #83004287 increase: Roughly ...
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.
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
Robert H. Goddard (1882–1945), the American physicist and inventor who built and launched the world's first liquid-propellant rocket on March 16, 1926. [1] Goddard held 214 patents for his inventions and pioneering innovations in liquid-propelled, guided, and multi-stage rockets. [2]
1800 – Law prohibited foreigners to apply for patents in the US, unless they had been residents for 2 years. [1] 1829 – Pennock v. Dialogue: This trial resulted in the statutory bar that patents could not be granted to inventions that were already in public use. [1] 1832 –
Many Native American contributions to our modern world often go unrecognized, according to Gaetana DeGennaro, a museum specialist at the Smithsonian National Museum of the American Indian.