Cosmos - Carl Sagan - 4th Dimension

The Mystery of Empty Space

Clip 1 from the opening of a 43 minute lecture, 'The Mystery of Empty Space: Higgs Bosons, Vacuum Energy and Extra Dimensions', May 2001.

Full lecture- http://www.ucsd.tv/library-...

Discovery Science - First Time Machine - FULL [HQ]

DL FULL: http://www.mininova.org/tor/1504233
OR http://www.seedpeer.com/details/83417...
OR http://tinyurl.com/3tlbyj

The 2003 BBC documentary "The World's First Time Machine", directed by Ben Bowie and featuring Ronald Mallett, premiered in the USA on The Learning Channel on December 3, 2003. This documentary features some of Dr. Mallett's current time travel research. It has since been shown numerous times on The Science Channel.

Ronald L. Mallett, PhD is a professor of theoretical physics at the University of Connecticut. He discovered a possible way to travel in time by applying Einstein's theory of relativity to laser light moving in a circle. The program uses CGI to illustrate his theories. Mallett was one of the first African-Americans to obtain a PhD in theoretical physics. He was inspired to do so because he wished to travel back in time to visit his dead father, who died when Mallett was ten.

HG Wells did it by means of an armchair and a cut lead crystal handle. The Starship Enterprise does it by unfeasibly powerful engines. And Doctor Who managed it in a 1960s police box, of all things. But just what is the truth behind time travel -- does modern day physics allow such a venture?