Help your friend learn about global warming with gifts that will almost certainly tick him off.
2011 is shaping up to be a great year for science. Here's what to look forward to
Technology may be ushering in a golden age of stalking, in which predators use GPS, cellphones and other devices to track and terrorize.
People who use hand sanitizers every five minutes, and other annoyances
Leave a comment to win this illustration on a t-shirt
This 10,000-rpm, no-pulse artificial heart doesn't resemble an organic heart--and might be all the better for it
Our ancient quest to create androids is about to destroy the boundary between humans and machines. Futurist, author and inventor Ray Kurzweil explains how
Not to be confused with Bespin, the Cloud City
Installing sensors in Nicaragua's Masaya volcano
From the Popular Science archives, the hurricane house, the seismograph camera, the forest-fire-fighting dirigible, and more.
What to do when someone seems to know too much about you
How ideas from biology-evolution, immune systems and forensics-will keep your PC safe from hackers
How safe can a citizen expect to be in a post 9/11 city? What technology can a city use to make its citizens safe?
Dangerous fumes from an African lake could be the fuel of tomorrow