What is Anti Gravity technology?How does it Work?
Anti-gravity (also known as non-gravitational field) is an idea of creating a place or object that is free from the force of gravity. It does not refer to the lack of weight under gravity experienced in free fall or orbit, or to balancing the force of gravity with some other force, such as electromagnetism or aerodynamic lift.
Anti-gravity is a recurring concept in science fiction, particularly in the context of spacecraft propulsion. Examples are the gravity blocking substance "Cavorite" in H. G. Wells' The First Men in the Moon and the Spindizzy machines in James Blish's Cities in Flight. In Newton's law of universal gravitation, gravity was an external force transmitted by unknown means. In the 20th century, Newton's model was replaced by general relativity where gravity is not a force but the result of the geometry of spacetime.
Under general relativity, anti-gravity is impossible except under contrived circumstances. Quantum physicists have postulated the existence of gravitons, massless elementary particles that transmit gravitational force, but the possibility of creating or destroying these is unclear. "Anti-gravity" is often used colloquially to refer to devices that look as if they reverse gravity even though they operate through other means, such as lifters, which fly in the air by moving air with electromagnetic fields.
In simple terms Anti-gravity is generating a counter to Newton's law of gravity F=GmM/r^2. The properties of anti-gravity are: um The strength of force should be proportational to mass the product of the mass of the objects It should be a repulsive force The force should drop off an inverse distance square law The potential energy generated by the force should be proportional to the distance. It should work in a vacuum. In Sweden announced that they have confirmed the existence of Element 115 currently known as Ununpentium. This is very cool news in the world of science. If my memory serves me, scientists may have made this discovery a number of years ago, but I guess now it’s “official”. Some kind of committee of physicists and chemists will now review the finding before adding it to the periodic table of elements. Beyond the sheer coolness of the discovery, the announcement stood out to me for another reason.
If any of you have ever watched any of the alien shows on the discovery channel or “science” channel, you may recall some guy named Bob Lazar. This guy claims to have worked at Area 51 (or more specifically some above top secret site near Area 51) reverse engineering UFOs. Now I should probably state that I don’t actually believe Bob Lazar, but his story does make for great science fiction nonetheless. According to Lazar, the UFOs were powered by Element 115. Allegedly, a particular isotope of Element 115 under proton bombardment would get bumped up to Element 116. This element would then rapidly decay, releasing antiprotons in the process. The antiprotons were then used for matter-antimatter annihilation inside a reactor. He also made an off-the-wall claim that the strong nuclear force that holds protons inside the nucleus (despite them wanting to repel each other), is really just gravity. Needless to say, there aren’t any physicists that would endorse such a claim. He also claimed that gravity waves are just like sound waves in that they can be amplified. The way the UFO traveled through the universe was by using the enormous energy produced by the antimatter reactor to amplify the gravity wave from the nucleus of an atom. Presumably, this would operate like some sort of warp drive. All told I’d have to give Lazar an A for effort. It’s a cool story that would have made a great science fiction novel. Unfortunately, given the disconnect from reality, it’s unlikely we’ll be generating antiprotons from Element 115 anytime soon. Antigravity technology would revolutionize space exploration and energy production. It would slash the energy demands of travel and transportation. First, however, we'd just have to drastically alter our understanding of physics and figure out how to counter this powerful force.
As such, antigravity technology remains both the Holy Grail and a red flag. There's been no shortage of hoaxes, conspiracy theories and credibility-straining reports regarding its research. For example, in 1992, Russian physicist Evgeny Podkletnov claimed to have successfully tested a device that shields an object from gravity. The experiment involved levitating a superconducting disc above a magnet. No one -- including NASA researchers -- has been able to replicate this experiment in the nearly two decades since that time. In 2002, noted aviation journalist Nick Cook's research into supposed Nazi antigravity research failed to win over critics. You might be starting to see why "antigravity" is a taboo subject. Or why NASA has chosen previously to research antigravity through projects with names like Breakthrough Propulsion Physics Project (1996-2002). NASA even published a booklet titled "Responding to Mechanical Antigravity" to help amateur and professional researchers, most of whom submitted ideas (as many as 100 per year) involving machines that falsely appeared to create an antigravity effect. And just in case you're wondering, NASA's zero-gravity flights aboard modified C-9 aircraft are not examples of antigravity. Neither is the levitation effect achieved in 2007 by countering Casimir force, a quantum force that essentially causes objects to stick to one another -- a type of nanofriction [source: ScienceDaily].
Antigravity, on the other hand, involves lessening the effects of gravitational pull on an object, and the science just isn't there yet. Many scientists strongly believe that antigravity isn't possible, given what we know about the universe and the laws that govern it. So for now, all those amazing antigravity gizmos are going to have to remain within the realm of science fiction.
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