Author Topic: These Physicists Watched a Clock Tick for 14 Years Straight  (Read 413 times)

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Online Free Vulcan

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Bijunath Patla’s experiment sounds like a real bore: Gather 12 of the most accurate clocks around the world, and watch them tick. It’s like a physicist’s version of watching paint dry. Patla’s team, based at the National Institute of Standards and Technology in Boulder, Colorado, began monitoring the clocks on November 11, 1999. And they’ve kept watching for some 450 million seconds*—over 14 years.

But their patience paid off. In a paper published in Nature Physics on Monday, Patla’s team reveal a profound result from an exceedingly monotonous experiment. The ticking of the clocks, Patla says, actually illustrates one of the most fundamental principles in the laws of physics: that no time or place in the universe is special. It’s one of the basic ideas in Einstein’s theory of general relativity, a set of rules that correctly describes how the planets orbit the sun and how neutron stars collide to produce gravitational waves. The laws of physics apply in the same way today as they did 4.5 billion years ago when the moon formed, or in 2000 when you were listening to Creed.

https://www.wired.com/story/these-physicists-watched-a-clock-tick-for-14-years-straight/
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Offline driftdiver

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Re: These Physicists Watched a Clock Tick for 14 Years Straight
« Reply #1 on: June 10, 2018, 10:39:53 am »
Or at least on this planet
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Offline aligncare

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Re: These Physicists Watched a Clock Tick for 14 Years Straight
« Reply #2 on: June 10, 2018, 11:09:54 am »
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His team chose atomic clocks because they’re some of the most precise machines humans have ever invented. Instead of ticking according to the swing of a pendulum or the vibrations in a quartz crystal, these clocks follow the steady beat of an atom. These atoms are engineered to emit light waves that oscillate at a constant several billion times a second. Patla’s clocks count the cycles of light, which are so consistent that the clocks won’t lose or gain a second in tens of millions of years.

Just the fact that man has in a [relatively] short time span figured out the subatomic nature of reality and built instruments to measure it and harness it for man’s benefit seems miraculous to me. (I’m still trying to figure out how to navigate my toaster oven).