Monday, 25 May 2009

Ticking tocking time: the facts

What happened in the time before the universe came into being? Nothing – scientists think time popped up along with the rest of the universe in the Big Bang.

In the dinosaur days, the day was just 23 hours long. That’s because tidal friction from the sun and moon slows our planet and increases the length of a day by 3 milliseconds every century.

The world’s most accurate clock is housed at the National Institute of Standards and Technology in Colorado, USA. It loses less than a second in a billion years.

According to Einstein, gravity makes time run more slowly. So airplane passengers, flying up high where Earth’s pull is weaker, age a few extra nanoseconds each flight.

Daylight Saving Time began as a joke by Benjamin Franklin – he suggested waking people earlier on bright summer mornings so they could work more during the day and save candles. It was introduced in the UK in 1917 and then spread around the world. Luckily we’ve escaped this nefarious time-sharing venture in South Africa…

Source: Discover