microgravity


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

microgravity

(mÿ-kroh-grav -ă-tee) The very low gravity encountered on spacecraft in Earth orbit, leading to a condition of near weightlessness. The behavior of liquids and gases in microgravity differs markedly from that observed on Earth. Hydrostatic pressure is small, sedimentation is suppressed, and dynamic effects, such as thermal convection, disappear. Space missions dedicated to the study of materials and living matter in microgravity include Eureca, the International Microgravity Laboratory, and the US Microgravity Laboratory.

microgravity

[‚mī·krō′grav·əd·ē]
(mechanics)
A state of very weak gravity, such that the gravitational acceleration experienced by an observer inside the system in question is of the order of one-millionth of that on earth.
References in periodicals archive ?
Samples from the Advanced Plant Experiments 03-1 will help scientists better understand the effects of microgravity on the development of roots and cells on plant seedlings.
A series of simulation studies were carried out investigating changes in heart shape deformation in earth's gravity and during microgravity exposure.
Castillo said his team was at the "very start of all of our preliminary research" and the brewers had more work to do on understanding the effects of microgravity on alcohol absorption.
The MIP 1 alpha level was decreased in microgravity which is potential markers of bone loss [20].
With the aim of learning how plants will grow in outer space, Purdue University researchers recently completed a series of microgravity experiments onboard a special National Aeronautical Space Administration (NASA) plane that produces weightlessness.
Microgravity atrophies muscles and depletes bone mass.
The CanaDrill is a unique device that combines mining and robotic technology to aid in the exploration of microgravity terrains.
XCOR will focus on securing a combination of government contracts and additional private investment to continue development of a suborbital vehicle for space tourism, microgravity research and microsatellite launches, company officials said.
Left ventricular pressure (LVP), aortic pressure (AoP), and aortic flow (AoF) measurements were studied to determine cardiac viscoelastic parameters Pelast and K for five monkeys during the microgravity condition.
It provides microgravity research, development, and operates microgravity science payloads for ground and spaceflight research.
experiments were conducted aboard NASA's KC-135 microgravity aircraft, enabling the collection of data appropriate for use in validating casting process simulation packages;