I hate it when this happens.
I hate it when this happens.
In a quantum eraser experiment, one arranges to detect which one of the slits the photon passes through, but also to construct the experiment in such a way that this information can be “erased” after the fact.
According to the BBC – 7 March 2012 18:41 ET :
A strong solar storm is expected to hit Earth shortly, and experts warn it could disrupt power grids, satellite navigations systems and plane routes.