How do we know where planes are in the sky?

  • 0 Replies
  • 1004 Views

0 Members and 1 Guest are viewing this topic.

*

Offline thedoc

  • Forum Admin
  • Administrator
  • Sr. Member
  • *****
  • 513
    • View Profile
How do we know where planes are in the sky?
« on: 13/08/2015 07:35:00 »
How do we know where planes are in the sky, and why do we occasionally lose them?

Read the article then tell us what you think...
« Last Edit: 13/08/2015 07:35:00 by _system »