Article 3RM1Q The days are getting longer – but very, very slowly

The days are getting longer – but very, very slowly

by
Ian Sample Science editor
from Science | The Guardian on (#3RM1Q)

As the moon pulls away from the Earth, our planet's rotation is slowing, making our days 1/75,000 second longer each year

If the day never seems long enough to get everything done, be grateful at least that times have changed. According to fresh calculations, a day on Earth was a full five hours and fifteen minutes shorter a billion or so years ago, well before complex life spread around the planet.

Scientists used a combination of astronomical theory and geochemical signatures buried in ancient rocks to show that 1.4bn years ago the Earth turned a full revolution on its axis every 18 hours and 41 minutes.

Continue reading...
External Content
Source RSS or Atom Feed
Feed Location http://feeds.theguardian.com/theguardian/science/rss
Feed Title Science | The Guardian
Feed Link https://www.theguardian.com/science
Feed Copyright Guardian News and Media Limited or its affiliated companies. All rights reserved. 2026
Reply 0 comments