Search results
Results from the WOW.Com Content Network
The timeline begins at the Bronze Age, as it is difficult to give even estimates for the timing of events prior to this, such as of the discovery of counting, natural numbers and arithmetic. To avoid overlap with timeline of historic inventions , the timeline does not list examples of documentation for manufactured substances and devices unless ...
On January 2, Ernest Lawrence and M. Stanley Livingston complete the first cyclotron, a type of circular particle accelerator. This early design is only 4.5 inches in diameter and yields a maximum proton energy of 80 keV. [2] [3] 1932. On January 1, Harold Urey, Ferdinand Brickwedde, and George M Murphy publish the discovery of deuterium.
American scientist R. Stanley Williams invented the memristor which ... Brief History of Electronics Timeline ; Date Invention/Discovery ... James Clerk Maxwell (1831 ...
This timeline lists significant discoveries in physics and the laws of nature, including experimental discoveries, theoretical proposals that were confirmed experimentally, and theories that have significantly influenced current thinking in modern physics. Such discoveries are often a multi-step, multi-person process.
1934 – Falsifiability as a criterion for evaluating new hypotheses is popularized by Karl Popper's The Logic of Scientific Discovery. 1937 – The first complete placebo trial is undertaken. The American pharmacologist Harry Gold, studying the effect of xanthines on cardiac pain, alternates them with a placebo and shows them to be ineffective ...
1747 – James Lind: Conducts one of the earliest European clinical trials, showing that scurvy was cured by consuming fresh oranges and lemons, but not other tested acids or drinks. 1774 – Charles Mason: Conducts an experiment near the Scottish mountain of Schiehallion that attempts to measure the mean density of the Earth for the first time.
The wrecks of the Titanic and the Titan sit on the ocean floor, separated by 1,600 feet (490 meters) and 111 years of history. The Polar Prince, a Canadian icebreaker ship, steamed out of ...
Sir Henry Morton Stanley GCB (born John Rowlands; 28 January 1841 – 10 May 1904) was a Welsh-American [1] [2] [a] explorer, journalist, soldier, colonial administrator, author, and politician famous for his exploration of Central Africa and search for missionary and explorer David Livingstone.