A bioethicist wondered whether fertility technologies might lead to a new and "improved" Homo sapiens.
A mini-magnetometer could inexpensively detect brain injury
Smart headlights could make difficult driving conditions safer
A new chemical process eliminates carbon dioxide emissions from lime production
A unique nanotube material may beat the best sorbents on the market
Germany has decided to pursue ambitious greenhouse-gas reductions—while closing down its nuclear plants. Can a heavily industrialized country power its economy with wind turbines and solar panels?
We need to develop the deployment of advanced materials.
As the world's books go online, we must resist centralization.
The Internet amplified but did not create the bravery that freed Libya.
If small companies are to survive in the highly competitive energy business, they'll have to work with the large companies they once hoped to replace.