Has anyone ever tested the theory of matter that is repelled by gravity instead of attracted? They would zoom away and seperate like helium escaping the Earth.
What theory is that? How would it be tested? Gravity is not even a force, it is a consequence of how space deforms around mass&energy. So, even if something like "negative mass" existed, it wouldn't repel, it would just cancel out.
Same with room temperature highly conductive matter :( Every day I wish we had Hoverboards, Flying Brooms, and Magic Carpets. Instead... every day is another car ride to the grocery store.