Search found 3 matches
- Thu Oct 02, 2008 7:33 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Happy 50th Anniversary NASA ! (APOD 01 Oct 2008)
- Replies: 19
- Views: 6479
Thank you
Very informative, and appropriate, postings neufer. Thank you.
- Thu Oct 02, 2008 1:09 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Happy 50th Anniversary NASA ! (APOD 01 Oct 2008)
- Replies: 19
- Views: 6479
Re: First Sattelite
Apparently you need to be in orbit to be a satellite. It is possible to launch an object steeply to great altitude without attaining orbit. What goes up (1) must come down unless it (2) goes up fast enough to escape or (3) goes up fast enough at a flat enough angle to achieve orbit. Thank you for t...
- Wed Oct 01, 2008 8:45 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Happy 50th Anniversary NASA ! (APOD 01 Oct 2008)
- Replies: 19
- Views: 6479
First Sattelite
Why would Sputnik be considered the first artificial satellite if the upper stage of the Bumper V2 "was able to reach then-record altitudes of almost 400 kilometers, higher than even modern Space Shuttles fly today."?