Latest Mass Stories

2010-05-07 15:50:00

ESA's GOCE satellite has been orbiting the Earth for more than a year and surveying its gravitational field more accurately than any instrument previously.

2010-04-21 06:20:31

Reported mid-life increase in body mass index (BMI) may lead to substantially higher risk of postmenopausal breast cancer.

2010-02-17 14:25:13

While airplane and rocket experiments have proved that gravity makes clocks tick more slowly – a central prediction of Albert Einstein's general theory of relativity – a new experiment in an atom interferometer measures this slowdown 10,000 times more accurately than before, and finds it to be exactly what Einstein predicted.

2009-09-19 09:21:04

Most of us are familiar with the term, Body Mass Index, or BMI, as an index to determine healthy body weight.

2009-09-03 09:55:00

In March, NASA launched its Kepler telescope with the hopes of discovering an Earth-like planet that could be hospitable to extraterrestrial life.

2009-09-01 13:20:00

Scientists using a continent-wide array of radio telescopes have made an extremely precise measurement of the curvature of space caused by the Sun's gravity, and their technique promises a major contribution to a frontier area of basic physics.

2009-08-20 14:40:00

An international group of scientists says it has defined the energy density of gravitational waves created immediately after the birth of the universe.

2009-08-19 15:25:00

On Wednesday, Aug. 19, 2009, the National Science Foundation (NSF) will host a live webcast featuring University of Minnesota Physicist Vuk Mandic.

2009-07-22 16:45:00

Using devices millionths of a meter in size, physicists at the California Institute of Technology (Caltech) have developed a technique to determine the mass of a single molecule, in real time.

Latest Mass Reference Libraries

2004-10-19 04:45:44

Satellite -- A satellite is an object that orbits another object. With sufficient tangential velocity, the object does not collide with the primary object it orbits, but maintains a distance from that object as the rate at which it falls towards that object is similar to the rate that it travels away, thus the object orbits the primary object and becomes a satellite. In other words: gravitational force serves as the centripetal force needed to make the object circle the primary...

2004-10-19 04:45:41

Gravitational Lens -- A gravitational lens is formed when the light from a very distant, bright object (such as a quasar) is "bent" around a massive object (such as a massive galaxy) between the bright object and the viewer. The process is known as gravitational lensing, and was one of the predictions made by Einstein's general relativity. Description In a gravitational lens, the gravity from the massive object bends light as a lens might. As a result, the path of the light from a...

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Word of the Day
  • In Roman antiquity, the return of a person who had been banished, or taken prisoner by an enemy, to his old condition and former privileges.
  • In international law, that right by virtue of which persons and things taken by an enemy in war are restored to their former status when coming again under the power of the nation to which they belonged.
The word 'postliminy' comes from a Latin word meaning 'threshold'.