News tagged with natural sources

The bottom line on sustainability

Climate change, pollution, dwindling natural resources, diminishing fresh water supplies… the list of problems we face as a species in the twenty-first century continues to grow. Many of the environmental problems are sadly ...

Sep 25, 2014
3.2 / 5 (9) 82

SLAC scientists create twisted light

(Phys.org) —Scientists at SLAC have found a new method to create coherent beams of twisted light – light that spirals around a central axis as it travels. It has the potential to generate twisted light ...

Sep 19, 2013
4.9 / 5 (21) 3 | with audio podcast