Information AboutAnti-gravity |
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Anti-gravity is a hypothetical means of countering or otherwise modifying the effects of Gravity , typically in the context of Spacecraft Propulsion . Such systems are limited to the realm of Science Fiction given the current understanding of the way gravity works, but this has not stopped legions of hopefuls from making various spinning disks and magnets in hopes of perfecting such a device. ANTI-GRAVITY IN THE CONTEXT OF MAINSTREAM PHYSICS
Some models of anti-gravity claim to derive from general relativity.
Some models of anti-gravity claim to be based on Quantum Gravity models, though the connection of these to mainstream Quantum Gravity models is often tenuous. CONVENTIONAL EFFECTS THAT LOOK LIKE ANTI-GRAVITY
Critics of various alleged anti-gravity devices often suggest that unusual effects observed around them are due to Electromagnetism .
ANTI-GRAVITY IN THE CONTEXT OF NON-MAINSTREAM PHYSICS The United States government and aerospace contractors publicly announced ambitious Manhattan Project -style goals to crack the anti-gravity problem during the mid- 1950s while the Atomic Airplane was on the drawing board, but by the end of 1957 no more information was flowing into the newspapers and magazines. According to the aviation trade publication ''Interavia'', solid progress in this area of research, referred to then as " Electro-gravitic Propulsion ," was an established fact by 1956 . "In this particular line of research, the weights of some materials have already been cut as much as 30 percent by 'energizing' them. Security prevents disclosure of what precisely is meant by 'energizing' or in which country this work is under way," the magazine reported. "A localized gravitic field used as a ponderamotive force has been created in the laboratory. Disc airfoils two feet in diameter and incorporating a variation of the simple two-plate electrical condenser charged with fifty kilovolts and a total continuous energy input of fifty watts have achieved a speed of seventeen feet per second in a circular air course twenty feet in diameter." The most successful research was said to have been conducted by Thomas Townsend Brown . Brown is known for his early interest in Unidentified Flying Objects (UFOs). In the 1990s , a Russia n emigre scientist Eugene Podkletnov reported gravity shielding with spinning Superconductor s. Podkletnov claims he saw tobacco smoke rise over the spinning superconductor, so he measured the Gravitational Acceleration above the device and made the discovery. Podkletnov now claims to have created a force beam that is 200 times stronger than his first experiments. NASA , Boeing , and BAE Systems have all funded Podkletnov reproduction experiments, with little to no results. According to 1 , Boeing denies 2002 funding at the time of the 2002 Nick Cook article. Another American scientist, Ning Li , independently predicted a gravity shielding effect with superconductors at nearly the same time as Podkletnov's announcements. In 1999 , Li and her team appeared in Popular Mechanics , having constructed a working prototype to generate what she describes as "AC Gravity". The device is known as the high temperature superconducting disc. Li acknowledges that to 'release' the device before knowing that it is indeed functional and not an unexplained aberration could cause a situation similar to the now refuted Cold Fusion discoveries. http://www.popularmechanics.com/science/research/1281736.html In November 2005 , the United States Patent And Trademark Office (USPTO) granted for an anti-gravity device. The journal '' Nature '' first highlighted this patent issued for a device that presumably amounts to a Perpetual Motion machine, defying the laws of physics [http://news.nationalgeographic.com/news/2005/11/1111_051111_junk_patent.html [http://www.sciencedaily.com/upi/index.php?feed=Science&article=UPI-1-20051109-13140400-bc-us-antigravity.xml]. REFERENCES
SEE ALSO
EXTERNAL LINKS Mainstream antigravity
Non-mainstream antigravity As the effects described by the following links haven't been unambiguously replicated or described in peer-reviewed journals by people other than the effects' proponents, they are often claimed to be Pseudoscience . Proponents of these anti-gravity models in turn often claim that they are dismissed out of hand without attempts at replication by the mainstream scientific community.
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