[A Navy Vet]

Okay, so how, why, and where does this energy appear from? Guess I don’t understand the definition of energy. BTW, is gravity an energy or a separate force in itself? Wish I had studied physics.

[AndyJackson]

I am a physicist. This is HS but as a scientist I cannot call someone else’s theory BS even if it is without an experimental or theoretical refutation. Therefore cold fusion and climate change stand because you can’t prove them wrong even though they are BS.

[muffaletaman]

Gravity isnt really a force, it just feels like one.
Acceleration by thrust, like in a car or F22 or Falcon9, IS a force.
But gravity is just space “flowing” toward matter. If something is blocking you from going with the flow, that blocking feels like a force.
All of space is always flowing toward all the matter in the universe, moderated by 1/distance(squared). If apple A is twice as far away as apple B, the gravitational attraction (flow) is 1/4th as strong.
And gravity “waves” as detected by LIGO from orbiting colliding black holes really are waves in the flow.
Crazy universe this is.
.....
Gravity.
It’s not just a good idea...
It’s the law!
IMHO...

[itsahoot]

Okay, so how, why, and where does this energy appear from?

More interesting how can there be anything? Even worse is where would nothing exist?

Since I was just a small tyke I always wondered how something could never end yet if something has an end it must have a limiting barrier which would necessitate another side.

Time for us is a measure we use to regulate our day and seasons but wouldn't time exist whether we measured it or not? How could there be no time? If as we are told the universe once was compressed into a mass smaller than a period on a paper, it still had to occupy a space even if that small, something still had to enclose it. Which means there had to be a space outside the small spec we define as the universe.

Lot of questions with answers that I suspect are unknowable at least in our human domain.

[BipolarBob]

BTW, is gravity an energy or a separate force in itself? >

There are plenty of very interesting YouTube videos (I prefer Arvin Ash myself). Gravity certainly acts like a force and can be measured like a force. It is considered a weak force though.