- free falling body
- 自由落体
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
free falling body
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Equations for a falling body — Under normal earth bound conditions, when objects move owing to a constant gravitational force a set of dynamical equations describe the resultant trajectories. For example, Newton s law of universal gravitation simplifies to F = mg , where m is… … Wikipedia
Free-fall time — The free fall time is the characteristic time that would take a body to collapse under its own gravitational attraction, if no other forces existed to oppose the collapse. As such, it plays a fundamental role in setting the timescale for a wide… … Wikipedia
Free-fall — is motion with no acceleration other than that provided by gravity. Since this definition does not specify velocity, it also applies to objects initially moving upward. Although the definition specifically excludes all other forces such as… … Wikipedia
free-fall — /free fawl /, v., free fell, free fallen, free falling, adj., n. v.i. 1. (of parachutists) to descend initially, as for a designated interval, in a free fall: The jumpers were required to free fall for eight seconds. adj. 2. denoting or… … Universalium
Free climbing — is a type of rock climbing, in which the climber uses no artificial aids to make upwards progress. In this way, the climber will use only hands, feet and other parts of the body. Ropes and protective equipment are used only for protection against … Wikipedia
Out-of-body experience — Artist s depiction of the separation stage of an out of body experience, which often precedes free movement. An out of body experience (OBE or sometimes OOBE) is an experience that typically involves a sensation of floating outside of one s body… … Wikipedia
Black body — As the temperature decreases, the peak of the blackbody radiation curve moves to lower intensities and longer wavelengths. The blackbody radiation graph is also compared with the classical model of Rayleigh and Jeans … Wikipedia
John Brown's Body — For the reggae musical group, see John Brown s Body (band). For the epic poem, see John Brown s Body (poem) John Brown s Body (originally known as John Brown s Song ) is a famous Union marching song of the American Civil War. The tune arose out… … Wikipedia
Move That Body (song) — Move That Body Single by Nelly featuring T Pain Akon from the album 5.0 … Wikipedia
Kite types — Colorful delta wing kite Kites are tethered flying objects which fly by using aerodynamic lift, requiring wind, (or towing), for generation of airflow over the lifting surfaces. Contents 1 Kite … Wikipedia
acceleration of gravity — acceleration of a free falling body under the influence of gravity (equal to approximately 32 feet per second) … English contemporary dictionary
