The well-known investor behind the likes of Twitter and Foursquare says venture capital funds have gotten too big.
An improved catalyst could lead to cheaper ways of producing hydrogen from water
Gas-filled microspheres quickly reverse oxygen deprivation
Gold nanoparticles illuminate faint traces of disease
Maes, whose research group studies human-computer interaction, says mobile devices may soon eavesdrop on their owners to anticipate their needs.
The PayPal cofounder wants to see more startups trying for bigger things.
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