"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." For more than 50 years, scientists theorized that an electromagnetic wave could be reflected ...

Add Yahoo as a preferred source to see more of our stories on Google. For more than 50 years, scientists theorized that an electromagnetic wave could be reflected temporally—not just spatially.

For more than 50 years, scientists theorized that an electromagnetic wave could be reflected temporally—not just spatially. Scientists have been unable to confirm the existence of time reflection due ...