What is antigravity? How would it possibly work?
What is antigravity?
Nope, this concept violates all fundamental (and other) principles of "physics".How would it possibly work?
How is that ?Since "antigravity" isn't really a scientific terrm, it is tough to really say what it is. Depending on how you read the term, an airplane could be an anti-gravity machine.
Well, you know what gravity is, no ? Think of THAt and then imagine "the opposite"...
Nope, this concept violates all fundamental (and other) principles of "physics".
Might I ask why you are wondering about this ? What triggered this line of questioning ?
You need to invest energy to "beat" gravity, which is ofcourse always the case. Anti gravity does NOT exhibit this "property".
http://www.nasa.gov/centers/glenn/research/warp/ideachev.html#neg [Broken]Negative mass propulsion
It has been shown that is theoretically possible to create a continuously propulsive effect by the juxtaposition of negative and positive mass and that such a scheme does not violate conservation of momentum or energy. A crucial assumption to the success of this concept is that negative mass has negative inertia. Their combined interactions result in a sustained acceleration of both masses in the same direction. This concept dates back to at least 1957 with an analysis of the properties of hypothetical negative mass by Bondi, and has been revisited in the context of propulsion by Winterberg and Forward in the 1980’s.
Regarding the physics of negative mass, it is not known whether negative mass exists or if it is even theoretically allowed, but methods have been suggested to search for evidence of negative mass in the context of searching for astronomical evidence of wormholes.
There are a large number of threads on topic of antigravity--many different views presented (and many differ models on how it would work)--here are links not locked:What is antigravity? How would it possibly work?
Someone asked me about it!Might I ask why you are wondering about this ? What triggered this line of questioning
I am not sure, or what would that be?According to General relativity in order to have something with "Anti gravity" it has to have negative mass and that breaks the laws of physics.
you are not negating gravity, you are overcoming it. theres a difference.if i jump into the air, i am creating a force that temporarily negates gravity. by defenition am i creating anti-gravitational energy? possibly, but anti-matter as an energy wave does not exist and is impossible.
I thought in classical physics anti gravity was possible.
if i jump into the air, i am creating a force that temporarily negates gravity. by defenition am i creating anti-gravitational energy? possibly, but anti-matter as an energy wave does not exist and is impossible.