Archive: 07/2/2009

Ferns took to the trees and thrived

(PhysOrg.com) -- As flowering plants like giant trees quickly rose to dominate plant communities during the Cretaceous period, the ferns that had preceded them hardly saw it as a disappointment.

Jul 02, 2009
4.8 / 5 (5) 0

Printable batteries

For a long time, batteries were bulky and heavy. Now, a new cutting-edge battery is revolutionizing the field. It is thinner than a millimeter, lighter than a gram, and can be produced cost-effectively through ...

Jul 02, 2009
4.8 / 5 (13) 4

Who wants to pay more for green electricity?

A research report in the International Journal of Environment and Pollution suggests that individuals prefer to be involved in a collective contribution to green electricity that involve everyone paying more, rather than h ...

Jul 02, 2009
2.5 / 5 (8) 12

Darwin complicit in manipulating photos

When Darwin came to publish The Expression of the Emotions in 1872, he employed images made by five photographers to illustrate the wide variation in human facial expressions. A new study of the way that two of these phot ...

Jul 02, 2009
1 / 5 (2) 0

Effectiveness of vitamin D, fish oil to be studied

Two dietary supplements -- vitamin D and fish oil -- will soon undergo a five-year test of their effectiveness in lowering the rates of several major diseases. Since nearly all African-Americans are deficient in vitamin D, ...

Jul 02, 2009
2.7 / 5 (3) 1