|Can negative gravity exist?|
|Question Date: 2019-03-30|
Based on Newton's law of Gravitation, there
could be a negative (repulsive) gravitation force
if the mass of the one the objects is
negative, which is not possible to observe in
our everyday life. However, recent observations of
the expansion of our Universe have shown that it
is expanding at an accelerating rate, a discovery
that won a Nobel Prize in 2011. This accelerating
expansion has been attributed to "dark
energy" which is a currently poorly understood
concept but has been found to make up the majority
of our universe. This dark energy has a sort of
repulsive or negative gravity effect which causes
the expansion rate to accelerate. So it
appears that there may be negative gravity, but
it is still currently poorly understood.
Sort of. The rate of the expansion of the universe
is increasing, which suggests that there is
some kind of anti-gravity-like force. However,
this spans the entire universe, and is equal
across all space. We know of no local negative
I googled negative gravity and got this
"Anti-gravity is a theory 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
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