(Roughly) Daily

“Time is the longest distance between two places”*…

 

In 1949, on the occasion of Einstein’s seventieth birthday, Gödel presented him with an unexpected gift: a proof of the nonexistence of time. And this was not a mere verbal proof, of the sort that philosophers like Parmenides, Immanuel Kant, and J. M. E. McTaggart had come up with over the centuries; it was a rigorous mathematical proof. Playing with Einstein’s own equations of general relativity, Gödel found a novel solution that corresponded to a universe with closed timelike loops. A resident of such a universe, by taking a sufficiently long round trip in a rocket ship, could travel back into his own past. Einstein was not entirely pleased with Gödel’s hypothetical universe; indeed, he admitted to being “disturbed” that his equations of relativity permitted something as Alice in Wonderland–like as spatial paths that looped backward in time. Gödel himself was delighted by his discovery, since he found the whole idea of time to be painfully mysterious. If time travel is possible, he submitted, then time itself is impossible. A past that can be revisited has not really passed. So, Gödel concluded, time does not exist…

Put yourself in Jim Holt‘s skilled hands for an explanation and an exploration of implications, in “The Grand Illusion.”

* Tennessee Williams, The Glass Menagerie

###

As we check our watches, we might recall that it was on this date in 1925 that Clarence Birdseye first tested frozen peas with consumers at a Chester, NY grocery store.  Birdseye had already patented a range of “flash-freezing” processes and devices, inspired by his experiences as a biologist and trapper in Labrador earlier in the century.  He had noticed that while slow freezing creates ice crystals in frozen foods– crystals that, when thawed, create sogginess– meat exposed to the extremely cold temperatures in the Canadian North– frozen essentially instantly– didn’t create internal ice, and were as tasty when thawed months later as fresh.  Birdseye created quick-frozen vegetables and meats as a storable option to fresh, and in 1930 offered a range of 26 frozen meats and vegetables.

source

 

Written by LW

November 3, 2014 at 1:01 am

%d bloggers like this: