Time

Just what causes things to “not all happen at once” remains an open question. So University of Birmingham physicist Giovanni Barontini decided to go back to basics and build a whole new universe to watch time unfold from scratch.

Two research teams have independently delivered working versions of a radical new kind of timekeeping device based on the jitter of an atom’s nucleus, realizing a goal decades in the making.

A recently published experiment has found that photons traveling through traffic consisting of cold rubidium atoms can leave late and still make it in before the boss decides to dock their pay.

A recent discovery suggests a hit of the brain’s "feel-good" chemical, dopamine, may have a rather surprising effect on our perception of past experiences, drawing out novel moments in our memories while letting more dull experiences become condensed.

The Earth's rotation has never been perfectly stable, but for most of its history the changes were tiny and natural. Now, a new study shows human-induced climate change is altering it while lengthening days at unprecedented rates.

If you're going to Mars you'd best take along a jar of anti-aging cream because while you're there you're going to age faster than on Earth thanks to the Theory of Relativity. It's only 477 millionths of a second per day, but that tends to add up.

Time availability can impact the development of dementia perhaps as much as diet and exercise, according to a panel of scientists. The group says its research should cause a paradigm shift in the diagnosis and treatment of the condition.

If, like me, you can't go a day without making sure your watch is synced to the second, you'll be delighted to learn that a new atomic clock has broken the record with an accuracy of 5.5 x 10⁻¹⁹ – gaining or losing one second in 57.6 billion years.

Atomic clocks are our most accurate timekeepers, losing only seconds across billions of years. But nuclear clocks could steal their thunder, speeding up GPS and the internet. Now, scientists have built and tested the first prototype nuclear clock.

Time is relative – we’re all familiar with that feeling that time drags when we’re bored and flies when we’re busy. New analysis of brain activity patterns shows how our brains track time, and some intriguing insights into how cells handle it.

Scientists have developed the most accurate atomic clock – if you ran it for twice the current age of the universe, it would only be off by one second. This could not only improve services like GPS, but help scientists probe how gravity affects time.

It's no surprise that regular exercise can improve a variety of health metrics. But a new study shows that when you work out is as important as exercise itself, especially when it comes to controlling your blood sugar levels.