01/12/2016

6,000 years ago, the Sahara desert was tropical—what happened?

As little as 6,000 years ago, the vast Sahara Desert was covered in grassland that received plenty of rainfall, but shifts in the world's weather patterns abruptly transformed the vegetated region into some of the driest ...

Going against the grain—nitrogen turns out to be hypersociable

Nitrogen is everywhere—there is four times as much of it as oxygen in Earth's atmosphere. However, it is reluctant to form chemical bonds, especially with more than four atoms. Chemists from Warsaw predict, however, that ...

New ultra-high density optical storage technology

According to current estimates, dozens of zettabytes of information will be stored electronically by 2020, which will rely on physical principles that facilitate the use of single atoms or molecules as basic memory cells. ...

New process produces hydrogen at much lower temperature

Waseda University researchers have developed a new method for producing hydrogen that is fast, irreversible, and takes place at much lower temperatures using less energy. This innovation is expected to contribute to the spread ...

Japan culling 230,000 more birds over avian flu

Japan has mobilised its military to help with a second mass cull of 230,000 chickens amid a spreading outbreak of a highly contagious strain of avian flu, officials said.

page 13 from 14