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Never make a calculation until you know the answer. Make an estimate before every calculation, try a simple physical argument (symmetry! invariance! conservation!) before every derivation, guess the answer to every puzzle.
Tags » John Archibald Wheeler
The holy grail of physics is to unite all of nature’s physical laws into a single, cohesive theory. It was a dream passionately pursued by Einstein nearly a hundred years ago and continues unabated to this day. 2,099 more words
It has been shown that there is no finite-energy non-singular solutions to the classical sourceless gauge-field equations in four-dimensional Minkowski space that does not radiate energy nor are there solutions which hold themselves together for a long time before radiating away their energy. 351 more words
As described by John Wheeler classical physics be regarded as comprising gravitation, source free electromagnetism, unquantized charge, and the unquantized mass of concentrations of electromagnetic field energy or geons, in these terms classical physics can be described in terms of curved empty space, and nothing more. 376 more words