Reshaping the Human Species
A bioethicist wondered whether fertility technologies might lead to a new and "improved" Homo sapiens.
Features
Compact Brain-Wave Sensor
A mini-magnetometer could inexpensively detect brain injury
Seeing in the Rain
Smart headlights could make difficult driving conditions safer
Low-Carbon Cement
A new chemical process eliminates carbon dioxide emissions from lime production
Oil Spill Sponge
A unique nanotube material may beat the best sorbents on the market
The Great German Energy Experiment
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?
Competing Faster
We need to develop the deployment of advanced materials.
Many Libraries
As the world's books go online, we must resist centralization.
Connected Conflict
The Internet amplified but did not create the bravery that freed Libya.
Can Energy Startups Be Saved?
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.
