The cofounder of MIT's Media Lab, Nicholas Negroponte, wants to make $100 laptops available to poor children throughout the world. The next few months will be critical in determining whether the One Laptop per Child project succeeds.
In his lab facing the Pacific Ocean, Daniel Morse is learning new ways to build complex semiconductor devices for cheaper, more efficient solar cells. He has an unlikely teacher: sea sponges.
By investing in energy efficiency, we could vastly reduce carbon dioxide emissions and save money.
A veteran technology commentator attempts to live entirely on Web 2.0 for two weeks.
Learning to consciously alter brain activity through MRI feedback could help control pain and other disorders.
The best scientists, scrutinizing atmosphere, ice, earth, and sea, say global warming is approaching a tipping point. But we still have time to keep it from reaching catastrophic levels.
We know where we must go eventually: toward a sustainable energy infrastructure. Why not head there now?
Better technologies exist for extracting coal, a major source of carbon dioxide emissions. The challenge is getting people to adopt them.
Genetically engineered organisms can more efficiently produce ethanol from cheap and abundant sources of biomass, such as agricultural waste. It could make ethanol cost competitive.
When Sony BMG hid a "rootkit" on their CDs, they spied on you and let hackers into your computer. What were they thinking?