Re: Re: Traveling Back In Time - an Astronomy Net Blackholes2 Forum Message

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


Home \| Discussion Forums \| Blackholes II \| Post	Login

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

Re: Re: Traveling Back In Time

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Alexander on January 18, 2001 18:08:01 UTC

Yeah, Sun moves with velocity about 230 km/sec relative to Milky Way center. So if you launch a rocket in opposite direction with the velocity -230 km/s, it will stay still (relative to Milky Way core). But because 230 km/s is way less than the speed of light 3x10^5 km/s, practically no time dilation will take place: t'/t=sqrt(1-(230/300000)^2)=.99999971 =99.999971 % or about one second off in 40 days.

Even if you move with a speed very close to the speed of light, you can not travel back or forth in time.

Follow Ups:

Re: Re: Re: Traveling back in time - skintless - January 22, 2001 - 23:42 UTC
- Universe is strictly mathematical. - alexander - January 23, 2001 - 00:39 UTC
  - Re: Universe is strictly mathematical. - skintless - January 23, 2001 - 02:18 UTC
- science (John Reyes) - phobos - January 23, 2001 - 19:02 UTC
  - Re: science (Phobos , Jim) - skintless - January 23, 2001 - 22:44 UTC
    - Re: Re: science (Phobos) - phobos - January 24, 2001 - 20:03 UTC
      - Where do we see Science? - alexander - January 25, 2001 - 01:57 UTC
        
        Re: Where do we see Science? - skintless - January 25, 2001 - 07:14 UTC
        
        Competent in math? - doctordick - January 25, 2001 - 11:49 UTC
      - Re: Re: Re: science (Phobos) - skintless - January 25, 2001 - 07:36 UTC

Additional Information

About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy

Unless otherwise specified, web site content Copyright 1994-2025 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