Archive: 10/29/2013

Russia breaks 'Zero Waste' Olympic pledge

Trucks rumble to the edge of a gigantic pit filled with spray cans, tires and foam sheets and dump a stream of concrete slabs that send up a cloud of limestone dust. Other trucks pile clay on top and a bulldozer ...

Oct 29, 2013 5 / 5 (2) 0

Seeing in the dark

Thermal infrared (IR) energy is emitted from all things that have a temperature greater than absolute zero. Human eyes, primarily sensitive to shorter wavelength visible light, are unable to detect or differentiate ...

Oct 29, 2013 5 / 5 (8) 0 | with audio podcast