Are there 25 hours in a day

Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens. For hundreds of millions of years, days have been growing longer and longer.

Add that up over millions of years and you start to see real changes—days in the Jurassic period were only 23 hours long, for example. Two milliseconds over a century may seem inconsequential, and for most of human history it was. But with computers, GPS, and modern communications, even inaccuracies of a nanosecond can introduce unwanted error. Consider GPS signals between satellites and receivers on the ground.

What glories could you dream up with that precious hour? Cuddle up with your child to read a book? Play a guilt-free hour of COD? And if you could have an extra hour every day — what then? Work on a secret project? Find a quiet hour to write that novel? Develop plans for your own start-up? Well, once a year, it actually happens, thanks to the end of Daylight Savings Time. Over the last few weeks of autumn, this ritual repeats from Vancouver to Ukraine, from Israel to the UK.

So what happens when your regular alarm goes off on Monday at 7am? Most of us will have already been awake for an hour! The Circadian rhythm is our internal body clock. Long before the invention of sundials and candle clocks, hour glasses and smart phone alarms, our ancestors set their routines in response to the rising and setting of the sun and the amount of daylight. And even though we have invented electricity and digital clocks, our physiology is still tied to those triggers.

The Broadway smash-hit begins previews at London's Piccadilly Theatre this weekend, and is based on the film of the same name which stars Nicole Kidman and Ewan McGregor. Most West End theatres only recommend mask-wearing during performances, but it is not a requirement of entry or part of any terms and conditions.

Legal restrictions inside theatres were completely lifted in July, leaving venue owners and show producers to work out how to keep audiences safe while also trying to sell out shows. The leader of one of the world's most climate-vulnerable nations has told Sky News that the commitments at the Glasgow summit have "no teeth" and are just "aspirational". Mr Davis was speaking on his return to the Bahamas from Glasgow where he said he tried to inspire world leaders to act as the summit enters its final scheduled day.

Beyond the picture-postcard image of the Bahamas, it is an island nation on the brink. NSW police opposed plan to let Aboriginal communities lock down in event of Covid outbreak. Health order suggested in early to restrict access to vulnerable areas was reportedly shelved after concerns over enforcement. Britain has fallen silent on Thursday in remembrance of the nation's war dead. The changes to the Cop26 draft text and what they mean. Some parts of the crucial climate document have been strengthened while others have been softened.

A senior paramedic shares their experience, saying they have never seen morale so low. The US consumer price index rose at an annual rate of 6. Follow along for live stock alerts, rumours, predictions and Xbox news from John Lewis, Argos, Game and more.