When light travels through areas of different air density, it bends. You’ve probably noticed the way distant pavement seems to shimmer on a hot day, or the way stars appear to twinkle. You’re seeing light that has been distorted as it passes through varying air densities, which are in turn created by varying temperatures and pressures.
Schlieren Flow Visualization can be used to visually capture these changes in density: the rising heat from a candle, the turbulence around an airplane wing, the plume of a sneeze … even sound. Special thanks to Mike Hargather, a professor of mechanical engineering at New Mexico Tech, who kindly provided a lot of these videos.
I’m totally Schlieren right now. Amazing sights of sounds.
Paging doctor Frankenstein
Medical procedures that can rejuvenate human body parts have moved a step closer with the completion of a new study.
A team of scientists at the Univ. of Edinburgh has succeeded in regenerating a living organ for the first time. The team rebuilt the thymus — an organ in the body located next to the heart that produces important immune cells.
Read more: http://www.laboratoryequipment.com/news/2014/04/researchers-regenerate-living-organ
Jon Stewart and Matt Taibbi discuss the different treatment afforded to ‘street’ based drug users and white-collar criminals profiting from the drug trade.
They Live (1988) directed by John Carpenter
Starring: “Rowdy” Roddy Piper and Keith David
Qadisha Valley, Lebanon