Moving the Earth: a planetary survival guide

 Elementary physics tells us that we actually can move the planets. Launching a rocket into space pushes the Earth a bit in the opposite direction, like the recoil from a gun.

Science-fiction author and trained physicist Stanley Schmidt exploited this fact in his novel The Sins of the Fathers, in which aliens built giant rocket engines at the South Pole to move the Earth. (Read about other sci-fi novels and films that have tackled the problem of moving worlds.)

In real life, however, the Earth is so massive that a rocket would have little effect on its motion. Launching a billion 10-tonne rockets in exactly the same direction would change the Earth’s velocity by just 20 nanometres per second – peanuts compared to the planet’s current speed of 30 kilometres per second.

A few astronomers have tackled the problem of moving planets, but not for dealing with emergencies on human time scales. They’re actually devising thought experiments to understand the dynamics of planetary systems, says Greg Laughlin of the University of California, Santa Cruz. So processes that occur on geologic time scales work perfectly well.

Read more about moving the planet on New Scientist.

55 thoughts on “Moving the Earth: a planetary survival guide

  1. Pingback: web
  2. Pingback: economics tuition
  3. Pingback: economics tuition
  4. Pingback:
  5. Pingback: porno
  6. Pingback: Khay inox
  7. Pingback: Best Blog in India
  8. Pingback: Best in the World
  9. Pingback: angara fahise
  10. Pingback: angara fahise
  11. Pingback: satta matka
  12. Pingback: bursa orospu
  13. Pingback: steroid supplier
  14. Pingback: tumblr blog
  15. Pingback: number one steroid
  16. Pingback: hampton fans
  17. Pingback:
  18. Pingback: gp mast 200
  19. Pingback: Live draw hongkong
  20. Pingback: Tom Goodwin
  21. Pingback: Webdesign
  22. Pingback: saleforiphone
  23. Pingback: Bespoke Web Design
  24. Pingback: #
  25. Pingback: tantalum chloride
  26. Pingback: Rapid PK studies

Comments are closed.