Zenos Paradox

Zeno’s paradoxes are a set of philosophical problems generally thought to have been devised by Greek philosopher Zeno of Elea (c. 490–430 BC) to support Parmenides‘ doctrine that contrary to the evidence of one’s senses, the belief in plurality and change is mistaken, and in particular that motion is nothing but an illusion. It is …

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Numero 73

The best number is 73…. 73 is the twenty-first prime number. Its mirror, 37, is the twelfth and its mirror, 21, is the product of multiplying (hang on to your hats) 7 and 3…. In binary, 73 is a palindrome: 1-0-0-1-0-0-1, which backwards is 1-0-0-1-0-0-1.” Jim Parsons was born in the year 1973. “The Alien …

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Why do GPS satellites tick precisely 38 microseconds faster than clocks on

Why do GPS satellites tick precisely 38 microseconds faster than clocks on Earth? The GPS satellite clocks actually need to tick over 38 microseconds per day (!) slower than terrestrial clocks in order to compensate for relativistic time dilation and contraction effects – at least, they would tick that much slower if they were still …

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