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Weightlessness, condition experienced while in free-fall, in which the effect of gravity is canceled by the inertial (e.g., centrifugal) force resulting from orbital flight. Excluding spaceflight, true weightlessness can be experienced only briefly, as in an airplane following a ballistic (i.e., parabolic) path.
- The Editors of Encyclopaedia Britannica
Weightlessness is the complete or near-complete absence of the sensation of weight, i.e., zero apparent weight. It is also termed zero g-force , or zero-g (named after the g-force ) [1] or, incorrectly, zero gravity .
18 de oct. de 2018 · Weightlessness may no longer be limited to elite astronauts; this article describes the science of weightlessness and how a non-astronaut might attain it.
ESA / Science & Exploration / Human and Robotic Exploration / mISSion possible. It is difficult to imagine situations where we are not attracted to the Earth. Absence of gravity is known as weightlessness. It is like floating, the feeling you get when a roller coaster suddenly goes down.
13 de feb. de 2009 · Specifically, NASA Glenn has the Zero Gravity Research Facility. It is a large shaft some 500 feet deep that allows test packages to free fall in a vacuum for just over 5 seconds. In this state of free fall, weightlessness (at or near microgravity) can be obtained. NASA Glenn also has a 2.2 second drop tower.
13 de oct. de 2017 · Weightlessness can be produced for brief periods on Earth. Whenever an object is not supported and falling freely it is weightless, as in the time between toe off and heel strike in jogging and running. The duration of weightlessness can be extended by jumping athletes and dancers (a).
15 de feb. de 2012 · This article is for students grades 5-8. Microgravity is the condition in which people or objects appear to be weightless. The effects of microgravity can be seen when astronauts and objects float in space. Microgravity can be experienced in other ways, as well. “Micro-” means “very small,” so microgravity refers to the condition where ...
