Archive: 29/07/2011

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 plant species.

dateJul 29, 2011 in Ecology
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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 the surface ...

dateJul 29, 2011 in Energy & Green Tech
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