Viruses differ greatly in size, the smallest being about 20 nanometers in diameter to the largest measuring some 400 nanometers across. For reference, a human hair is about 60,000 nanometers in ...

The wireless 4-button keychain touchpad makes ITI security systems easier to use. The small but powerful touchpad acts like an electronic key. It can arm or disarm the system, activate the police or ...

Nintendo's new line of capsule toy keychains in Japan offers much more than meets the eye - you can take the retro-style knickknacks apart for fully functional controller parts. GameCube, N64, and ...

The iMpulse Game controller, now with eight days left in its Kickstarter campaign, was already planned to be a sleek little keychain-sized physical game controller. Compatible with iPhone, iPad, iPod ...

One in four female college seniors has experienced sexual assault on campus, according to a recent survey by the Association of American Universities. That’s a growing concern for both students and ...