Search results for “capillary motion”

How Would You Turn a Bolt in Space?

Tools such as saws, hammers, and levers are designed to make work easier. Sometimes, the environment in which a person works dictates whether or not a certain tool will get the job done. In the microgravity environment of space, astronauts are often required to do experiments or simple repairs. On E

Why Doesn't the Moon Fall Down?

Astronomer Doris Daou explains how the forces of speed and gravity keep the Moon in a constant orbit around Earth in this animated video segment adapted from NASA. The Moon, Earth's natural satellite, seems to hover in the sky, unaffected by gravity. However, the reason the Moon stays in orbit is pr

How can temperature be defined?

Atoms and molecules are always in motion. Temperature reflects how intensely they move. The faster they move, the hotter it gets, and vice versa, right down to absolute zero, where everything stops. To define temperature, there are different scales. Authors: ZDF/TerraX plus/Bilderfest/Paul Grumer/M

ScienceCasts: Space Coffee

Advances in the understanding of how fluids behave in low gravity is key to spacecraft operations. A long-awaited spin-off is an excellent cup of coffee in space. For updates from the International Space Station go to http://www.nasa.gov/station Visit http://science.nasa.gov/ for more. Click here