"The Meaning of Relativity" by Albert Einstein. Princeton University Press, 1950. Third edition.
The year 2015 marks the 100th anniversary of Albert Einstein's presentation of the complete Theory of General Relativity to the Prussian Academy. It doesn’t take a genius to recognize the importance of Einstein’s theory — even if his earth-shaking physics formula, Rµv–½gµvR=(8πG/c4) Tµv, is daunting to many of us. Every day, Einstein’s work is employed by a huge percentage of the human population — including everyone who uses a global positioning system (GPS).
Einstein’s theory revealed that time runs more slowly near a strong source of gravity — an idea that revolutionized physics when first presented to the Prussian Academy of Sciences in November 1915, but would have no practical applications for decades, because the technologies that could make use of the theory did not yet exist. Today, Einstein’s discovery makes it possible to ensure GPS devices sync up properly with satellites far from the Earth’s center of gravity.
"The Meaning of Relativity" by Albert Einstein. Princeton University Press, 1950. Third edition.
The year 2015 marks the 100th anniversary of Albert Einstein's presentation of the complete Theory of General Relativity to the Prussian Academy. It doesn’t take a genius to recognize the importance of Einstein’s theory — even if his earth-shaking physics formula, Rµv–½gµvR=(8πG/c4) Tµv, is daunting to many of us. Every day, Einstein’s work is employed by a huge percentage of the human population — including everyone who uses a global positioning system (GPS).
Einstein’s theory revealed that time runs more slowly near a strong source of gravity — an idea that revolutionized physics when first presented to the Prussian Academy of Sciences in November 1915, but would have no practical applications for decades, because the technologies that could make use of the theory did not yet exist. Today, Einstein’s discovery makes it possible to ensure GPS devices sync up properly with satellites far from the Earth’s center of gravity.