Back to Home

Blackholes Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Blackholes I | Post
Login

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Time For Space Travel

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by FineS137 on April 3, 2001 20:26:14 UTC

That arguement is based on the unrealistic assumption that the time it would take them is the same that it would take humans with 20th century technology. Lets move into the 21st. We will soon be able to manipulate the inertial state of ships to change their natural state of motion to a state of acceleration. see-
http://home.aol.com/zcphysicsms/inertmanip.htm
Lets say we can acheive a = 1 ly/y2
(about earths surface acceleration). If you speed up half way to Alpha Centauri, slow down the other half and repeat the process to get back, then for those on the ship, the round trip would take
t' = 7 yrs 4 months.
while for those on earth it would take 11 yrs 11 months.
Moving further into the future of technology still, there are various methods of removing the limitation of the speed c as the top speed at which those on earth observe the ship to move. see-
http://home.aol.com/zcphysicsms/modernrelativity.htm

Follow Ups:

Login to Post
Additional Information
Google
 
Web www.astronomy.net
DayNightLine
About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
Unless otherwise specified, web site content Copyright 1994-2019 John Huggins All Rights Reserved
Forum posts are Copyright their authors as specified in the heading above the post.
"dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
are trademarks of John Huggins