What are planets?

This reprints an essay written ca. 1983, "'What Song the Syrens Sang': How Did Einstein Discover Special Relativity? ... See Albert Einstein, Autobiographical ... This Month in Physics History. Albert Einstein. Einstein's ... One reason for Einstein's failure to discover a unified theory may be his ... The GPS position of LiDAR drones uses the General relativity, a theory of gravitation that was developed by Albert Einstein between 1907 and 1915. Mar 17, 2008 ... Did Albert Einstein Help Build the First Atomic Bomb? Yet, Albert Einstein was not directly involved in the development of the atomic bomb. Apr 18, 2012 ... Walker, on the other hand, says: “I find it difficult to resist the conclusion that Mileva, justly or unjustly, saw this as her reward for the ... Aug 24, 2015 ... The great physicist was not the first to equate forms of mass to energy, nor did he definitively prove the relationship. Mar 20, 2015 ... Think you know the man behind the famous equation? Find out how Einstein dealt with the doubters of relativity--and tried to get his kids to write him more ... Apr 27, 2021 ... Einstein's findings helped to prove the existence of atoms and molecules. => The quantum theory of light. Einstein proposed that light is ... What did Albert Einstein say about time travel? Einstein stated that it is possible for one to travel into the future if one travels at the speed of light. In 1905 Einstein discovered the special theory of relativity, establishing the famous dictum that nothing—no object or signal—can travel faster than the speed ...