Satelite, weight scale, and shower
Car, running shoes, Bowling ball.
Lawn mower, chair, frying pan.
Table cloth, playground swing, watering can.
Satilites, cars, and spaceships.
Overshot water wheel.
Gravity needs no specific "devices". ANY mass in the Universe attracts ANY other mass. So, the only thing you need for gravity to work, is to have two objects that have mass - so basically, any two objects.
Satiltes, cars, cause the would stick to ground and spaceships because of the landing mechinisms
car tap coffee machine shower satellite
Fountain pens depend on gravity to pull the ink down to the nib. In Zero gravity, they don't work.
Gravity is dependent upon mass.
Gravity does not depend on density. Gravity is the gravitational pull that is invisible and cannot be touched or changed. Density is how much matter is packed within an object, which can be changed. Gravity and density are two totally different things, and are in no way related, therefore gravity does not depend on density.