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

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

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Michael Kannel/">Michael Kannel on August 29, 1998 22:33:01 UTC

: : : : : : Hi there. : : : Can anybody explain me why we go beyond the light speed. : : : Thanks.Bye. : : What do you mean???? Beyond the light speed???

: : If you mean why do we not stop with light as the fastest speed that's because light doesn't travel at the same speed. It all depends on the median in which it is traveling ie. water, air,space.

: : : It is not possible to travel faster than the speed of light in a vacuum. However, if a particle (with mass) is traveling at nearly the speed of light in a vacuum, then enters a material such a water where light slows down so that it now travels faster than light in that medium, it creates a shock wave analogous to a sonic boom. This shock wave is, of course, light. That photon carries away some of the kinetic energy of the particle thus slowing it to below the local speed of light. I once read that this effect has been used to detect cosmic radiation.

Follow Ups:

    Login to Post
    Additional Information
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2024 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