<p>The clock was flown around the world by BBC One's 'Bang Goes The Theory' series, produced in partnership with The Open University.<br /><br />In the test described as 'extremely rare', the clock flew for 800 km over fifty hours and was found to have slowed by 230 ± 20 nanoseconds, compared to an atomic clock that stayed in exactly the same position at the NPL in Teddington.<br /><br />The experiment was a repeat of the famous Hafele-Keating experiment and revealed the time dilation effects predicted by Einstein's Theory of Relativity.<br /><br />'Bang Goes The Theory' presenter, Dallas Campbell, who accompanied the clock on its lengthy journey said: "Hopefully we've demonstrated that you don't need a Delorian and a Flux Capacitor to have your own mini Back To The Future adventure.<br /><br />"I'm hoping that the extra 250 nanoseconds doesn't show, but it's a small price to pay to prove that time really does fly when you're having fun."<br /><br />To reveal these effects, organisers required the use of highly accurate atomic clocks, calibrated to check that they are perfectly in sync with each other – ticking down the nanoseconds (one billionth of a second: 0.000 000 001 seconds) in complete unison.<br /><br />One clock was taken on a trip around the world, whilst the other one stayed at the NPL in Teddington.</p>.<p>When the two clocks were reunited, according to Einstein's theories, they should no longer be in sync - the clock that travelled around the world should be ahead of the stationary clock by a significant amount.<br /><br />The results demonstrate that Einstein's theories are correct, as 'Bang Goes The Theory' and the NPL were able to measure a clear time-shift of 230 ± 20 nanoseconds between the two clocks involved in the experiment.<br /><br />This agrees with the time-shift predicted by Einstein, the Open University said. </p>
<p>The clock was flown around the world by BBC One's 'Bang Goes The Theory' series, produced in partnership with The Open University.<br /><br />In the test described as 'extremely rare', the clock flew for 800 km over fifty hours and was found to have slowed by 230 ± 20 nanoseconds, compared to an atomic clock that stayed in exactly the same position at the NPL in Teddington.<br /><br />The experiment was a repeat of the famous Hafele-Keating experiment and revealed the time dilation effects predicted by Einstein's Theory of Relativity.<br /><br />'Bang Goes The Theory' presenter, Dallas Campbell, who accompanied the clock on its lengthy journey said: "Hopefully we've demonstrated that you don't need a Delorian and a Flux Capacitor to have your own mini Back To The Future adventure.<br /><br />"I'm hoping that the extra 250 nanoseconds doesn't show, but it's a small price to pay to prove that time really does fly when you're having fun."<br /><br />To reveal these effects, organisers required the use of highly accurate atomic clocks, calibrated to check that they are perfectly in sync with each other – ticking down the nanoseconds (one billionth of a second: 0.000 000 001 seconds) in complete unison.<br /><br />One clock was taken on a trip around the world, whilst the other one stayed at the NPL in Teddington.</p>.<p>When the two clocks were reunited, according to Einstein's theories, they should no longer be in sync - the clock that travelled around the world should be ahead of the stationary clock by a significant amount.<br /><br />The results demonstrate that Einstein's theories are correct, as 'Bang Goes The Theory' and the NPL were able to measure a clear time-shift of 230 ± 20 nanoseconds between the two clocks involved in the experiment.<br /><br />This agrees with the time-shift predicted by Einstein, the Open University said. </p>