DIY water treatment system

(Phys.org) —A low-cost wastewater treatment system built entirely with recycled materials and parts from hardware shops will help transfer Australian expertise to classrooms in Tunisia.

Apr 26, 2013 4.7 / 5 (3) 0

Using cattails for insulation

A growing number of homeowners are insulating their walls in order to lower energy costs. They opt for the cheap variety, polystyrene. Yet there are environmentally-friendly alternatives: Cattails, for instance, ...

May 15, 2013 4.7 / 5 (3) 0

Laser instead of drill

If the brain starts to swell after a stroke, surgery is often the only treatment option – one in which the physicians open the patient's cranial vault. Up to now, they would reach for the drill and the ...

May 15, 2013 4.3 / 5 (3) 1

Tracking gunfire with a smartphone

(Phys.org) —You are walking down the street with a friend. A shot is fired. The two of you duck behind the nearest cover and you pull out your smartphone. A map of the neighborhood pops up on its screen ...

Apr 25, 2013 3 / 5 (4) 0 | with audio podcast