Encyclopedia of Science    FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Search found 2 matches Encyclopedia of Science Author Message   Topic: relativity theory - how does it go? Pem Tech Replies: 1 Views: 2625 Forum: Science Forum   Posted: Fri Sep 12, 2008 7:24 pm   Subject: ~ No... It will still be 300kkm/s, and that is the beauty of relativity, the speed of light on a vacuum is the upper limit possible from this side of that limit. Theory shows that their may be particle ...   Topic: x-ray through metals? Please help. Pem Tech Replies: 4 Views: 5191 Forum: Science Forum   Posted: Fri Sep 12, 2008 5:39 pm   Subject: X-Rays X-Rays or Gamma Rays are high energy photons that will penetrate several feet of concrete and several inches of lead. Yes, X-Rays can "see" or pass through metal, as was suggested by nohow75 ...   Page 1 of 1 All times are GMT - 6 Hours Powered by phpBB © 2001, 2005 phpBB Group