Gravity has mass

[brian334]

What can make something with
mass move that does not have mass?

[sm0ky2]

What can make something with
mass move that does not have mass?

mass and gravity are interchangable, where there is mass there is gravity, where there is no mass gravity does not exist.

so, gravity IS mass.  if you prefer to think of mass as "having gravity"  or "gravity having mass", it makes no difference,. where there is one, there are both.

[IceStorm]

mass and gravity are interchangable, where there is mass there is gravity, where there is no mass gravity does not exist.

so, gravity IS mass.  if you prefer to think of mass as "having gravity"  or "gravity having mass", it makes no difference,. where there is one, there are both.

if you are in space, you body keep the mass you had on earth but there no more gravity. The human body in space suffer from alot of problem because of the lack of gravity.So when you said "where there is no mass gravity does not exist" i dont think its true because that mean that if no gravity , there no mass too but we can still go in space and our mass dosent change.

Best Regards,
IceStorm

[mr_bojangles]

does electricity or magnetism have mass?

solar sails are powered by light, which doesnt have mass but has the capacity to become mass


gravity is a storage device for potential energy.

so i guess gravity is merely a form of potential energy, and i dont necessarily consider energy to be mass

[deltadrone]

Hold on there.  Different masses have different gravity.  Mass + density = Gravity.  If you had a planet made up of Iron it will have a greater gravity mass/density ratio than a planet made up of ammonia and sulfur. So you can have a mass greater than the earths but it gravity is less than earths. So I don't think gravity is mass.
Delta