The reason that things float in air is because they're lighter than air is. It seems a little bit strange to think that air actually weighs something, but it really does! Air is made up of lots of /really/ little things, like nitrogen and oxygen atoms

Levitate Objects in Mid-Air (Really!): I found myself wanting more out of my Levitron, which levitates a small top about six inches into the air using a pair of magnets, but scaling it up is both beyond my price range and inefficient, considering that we

By floating in the air, I assume you are referring to levitation and flying in the air which some groups or individuals claim to be able to do. Hinduism, Gnosticism, Christianity, Judaism, and Buddhism all have stories of spiritual leaders display...