Archive: 07/29/2011

Metamaterials used to mimic the Big Crunch

Spacetime analogs is an emerging field of physics in which scientists investigate systems having mathematical links with general relativity, and test their theories about the early behavior of the universe. The latest in ...

Jul 29, 2011 4.5 / 5 (14) 9 | with audio podcast report

War on willows

Willows are major environmental weeds of riverbank habitats across much of south-eastern Australia. They obstruct water flow, increase water temperature, change water chemistry and can displace native riverine ...

Jul 29, 2011 3 / 5 (2) 0

Sun-free photovoltaics

A new photovoltaic energy-conversion system developed at MIT can be powered solely by heat, generating electricity with no sunlight at all. While the principle involved is not new, a novel way of engineering ...

Jul 29, 2011 4.9 / 5 (11) 6 | with audio podcast

EPA targets air pollution from gas drilling boom

(AP) -- Faced with a natural gas drilling boom that has sullied the air in some parts of the country, the Environmental Protection Agency on Thursday proposed for the first time to control air pollution at oil and gas wells, ...

Jul 29, 2011 4.2 / 5 (5) 1