It's a century late, but Einstein's still right on time





Time, as we all know, is relative: good experiences seem to fly by, whereas bad ones seem to drag on forever.

"After two hours, I looked at my watch," a reviewer of Wagnerian opera is said to have written. "I found that 17 minutes had gone by."

In 1905, Albert Einstein wrote his own treatise on the relativity of time, famously theorising that time speeds up or slows down according to how fast an object is moving in relation to another object.

Thus, according to his hypothesis, a clock which is in motion ticks more slowly than an identical clock which is at rest -- a phenomenon that Einstein called time dilation.

In a study published on Sunday, the most accurate experiment yet into time dilation has proven the great German physicist to be bang on target.


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