The macro world as we know it is governed by Newton’s laws of motion and gravity – what goes up, must come down.
But a team of physicists from Columbia University have put forward a theoretical paper that turns this idea on its head. They say there might actually be particles with negative mass – which under gravity, move up, instead of down – and they’re all around us.
According to their paper, it’s not any weird subatomic particle that has these properties, but the particles of sound we hear and produce every day – phonons – that are rebelling against the force of gravity.
Physicists Say There Could Be a Strange Source of ‘Negative Gravity’ All Around Us
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