Article: A primer in black holes, Mach's principle and gravitational energy.(Brief article)(Book review)

Dictionary definition: gravitational energy
A Dictionary of Astronomy;      321 words ... ... protostar, the gravitational energy released heats ... can commence. Gravitational energy also supplies the ... Large amounts of gravitational energy are released by ... accretion disks around black holes, and may provide ...

Article: Earth-moon model backs general relativity.(gravitational ...
Science News;  October 30, 1999 ;     700+ words ... ... gravity. Yet, some theories exempt gravitational energy from the force's attraction ... reports that the acceleration of gravitational energy doesn't differ from that of other ... 460 trillionths of the mass became gravitational energy, scientists have calculated. Only ...

Article: WIPO: Inventor in Belgium Develops Gravitational ...
US Fed News Service, Including US State News;  October 10, 2008 ;     390 words ...GENEVA, Oct. 10 -Mehran Tavakoli Keshe of Tiegem, Belgium, has developed a gravitational and energy system. According to an abstract posted by the World Intellectual Property Organization, the invention concerns a "new method, process and technology is described how introduced materials can

Article: X rays unveil secret lives of black holes.
Science News;  January 6, 2001 ;     700+ words ... ... new era in the study of black holes," says Richard F. Mushotzky ... Greenbelt, Md. Not all black holes hide behind dust. Some ... objects in the cosmos. Black holes power quasars by converting gravitational energy--the energy gained ...

Article: SPACECRAFT HUNTING BLACK HOLES.(MAIN)
Albany Times Union (Albany, NY);  November 21, 2004 ;     505 words ... ... surrounding these explosions and black holes. Gamma ray bursts are ... signal the formation of black holes. Astronomers theorize ... stars is what produces black holes and that the resulting gravitational energy sends gamma rays shooting ...

Article: Space observatory to shed light on black holes
The Record (Bergen County, NJ);  November 21, 2004 ;     635 words ... ... signal the formation of black holes. Astronomers theorize ... stars is what produces black holes - so dense not even ... that the resulting gravitational energy sends gamma rays shooting ... the birth cries of black holes and we're seeing ...

Article: NASA launches observatory to hunt for black holes
Chicago Sun-Times;  November 21, 2004 ;     410 words ... ... signal the formation of black holes. Astronomers theorize ... stars is what produces black holes -- so dense not even ... that the resulting gravitational energy sends gamma rays shooting ... the birth cries of black holes, and we're seeing ...