Knud-niks, Neewalkers, O-dats, Keepers and holographic rooms. What do they all mean? A new Wiki created by high school students will explain it all.

Get up close and personal with brain tissue, kidney cells, cyanobacteria and more. This slideshow lets you glimpse the realm of the tiny through confocal microscope images.

Many of the technologies, materials and systems you use every day were designed by engineers. Read about what different types of engineers create.

To receive a U.S. patent, an invention must be considered new, useful, and non-obvious. You cannot patent inventions that are already widely used or described, that have no useful purpose, or that would be obvious to anyone with ordinary skill in that art.

Ion channels are proteins found in a cell’s membrane. Scientists are using ion channels to create new sensors, drugs, and medical devices.

A soldier walks through a building in a war zone. Suddenly, an alarm begins going off in his pocket. He pulls out a sensor about the size of a deck of cards. The sensor has detected the disease-causing microbe anthrax. Okay, soldiers don't really have sensors this small and reliable yet. But scientists are working to create them.

Air is all around you. It presses against your body all the time. That’s why we call it air pressure. Anyone can measure air pressure using a tool called a barometer. Barometers work because air has weight.

Origami is the art of folding paper into shapes like animals or flowers. Some origami artists like to challenge themselves by folding models so tiny they could fit on your fingertip. Stuart Lindsay goes even smaller. He makes origami with DNA.