YES, you heard correctly!  Physicist Roberto Serra of the Federal University of ABC in Santo Andre, Brazil reported an experiment where heat flowed from cold to hot (rather than as the one-way "arrow of time" would suggest only from hot to cold). While a small step, it suggests that time's unidirectional flow may be more relative than absolute. 

Stephen Hawking recently suggested that when charged particles get sucked into a black hole, they leave behind a holographic imprint on the event hori...

Continue reading ...