Well your answers is magnets my friend like a bullet train that they have in the east they sit above a negativley charged magnet while the botttem of the train has a positive charge thus making it float or smething like that! ur welcome!!!!!
on the other hand it is impossible to lay a solid on a gas that is infinite with our technology but we can add things like magnets to help it stay up.
that's impossible because gravity is to powerful so it keeps pulling the object down
If the object does not quite float in water, adding salt to the water might make the object float, yes.
Well, buoyancy is capacity to float in liquid. So the object needs to have air to make it float an example for an boat the Titanic for example was really heavy it was made out of steel so it had air in the bottom to make the ship float.
If it less dense
That depends what object you want to float.
no and mass is air
Yes. If the object is in a lower gravitational pull, like the object is in the moon then it can float. But if it the object is in the Earth ,then the object will not float, also in water. But boats and ships are different cos it has a property or structure that make them float.
The higher the salt content in water the more an object will float. Check the related links for a science experiment that will also help you to experience how this works.
The Object's name is an "Air Craft"If its not... Then I don't really know.
You don't put it in water! or in the air!
you will float up in the air
i think you mean how does an object float if you did here is the answer most solids float on liquid because it has air in it (sponge) or it is lighter than the liquid.