News tagged with effect

The pho­to­elec­tric ef­fect in stereo

In the photoelectric effect, a photon ejects an electron from a material. Researchers at ETH have now used attosecond laser pulses to measure the time evolution of this effect in molecules. From their results they can deduce ...

dateJun 22, 2018 in Optics & Photonics
shares819 comments 0

AP Was There: The age of climate change begins

On June 23, 1988, a top NASA scientist told Congress and the world that global warming had arrived. NASA scientist James Hansen predicted that 1988 would be the world's hottest year on record, thanks to the burning of fossil ...

dateJun 18, 2018 in Environment
shares12 comments 0