Questions about the merits of the space shuttle are older than the program itself.
Today's electric cars and wind turbines rely on a few elements that are mined almost entirely in China. Demand for these materials may soon exceed supply. Will this be China's next great economic advantage?
A biotech executive explains her innovative business model for funding diagnostic tests in poor countries.
Metals crucial to electronics are in short supply, and so are the skills needed to solve the problem.
How to spot emerging technologies that will change the world.
High-powered handsets offer few advantages for the developing world.
The founder of Ion Torrent says his DNA-sequencing technology will revolutionize genomics the way the microprocessor transformed computing.
Web apps can displace all other forms of software if browser and Web technology continue to improve.
Novel products that create new markets often emerge from pioneering user inventions.
New energy technologies need the support of sound economic policy to prevent further damage to our climate.