Archive: 04/30/2013

Cheating favors extinction

Cooperative behaviour is widely observed in nature, but there remains the possibility that so-called 'cheaters' can exploit the system, taking without giving, with uncertain consequences for the social unit ...

Apr 30, 2013
4.1 / 5 (16) 70 | with audio podcast

Apple bond offering among biggest ever

A bond offering from Apple expected to be priced later today will be one of the largest ever for a US company, according to leading financial newspapers Tuesday.

Apr 30, 2013
2.4 / 5 (5) 0

NASA image: Fires in Western Australia

In Western Australia, the wet season occurs between December and March and the dry season between May and October. The reversals of prevailing winds in the two season drives the shift from wet to dry and ...

Apr 30, 2013
5 / 5 (1) 0

NASA image: Fires in eastern Russia

Even as the snow begins to retreat in the eastern part of Russia, fires are being set to clear the land for planting. This Moderate Resolution Imaging Spectroradiometer (MODIS) image from the Aqua satellite ...

Apr 30, 2013
5 / 5 (2) 0

New material to soak up oil spills?

Scientists said Tuesday they had manufactured a lightweight and reusable material that can absorb up to 33 times its weight in certain chemicals—a possible new tool against water pollution.

Apr 30, 2013
5 / 5 (8) 0

How to manage motorway tolls through the Game Theory

A team led by José Manuel Zarzuelo, Professor of Applied Economics, has applied the co-operative Game Theory to calculating motorway toll charges. The results of the study have been published in the specialised journal European Jo ...

Apr 30, 2013
2 / 5 (1) 0