k{g^{- 2}}\). Overall this equation is simpler than it looks as long as you ensure that: distance is given between centres units are all in metres and kilograms The force of gravity exists between ...

What is gravity without mass ... solving a simplified version of the Einstein field equations that allows for a finite gravitation force in the absence of any detectable mass.

Great! So, what's gravity? Aaaah, gravity is the force that makes objects fall towards the ground. And, without gravity, we'd all float! Hmmmm… You're right! The force of gravity is weaker on ...

“We proved that the Einstein field equation from general relativity ... So, instead of thinking of gravity as an invisible ...