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Instability leads to an increase in postural sway, the measurement of the time and distance a subject spends away from an ideal center of pressure. The measurement of ...
Atmospheric instability is a condition where the Earth's atmosphere is considered to be unstable and as a result local weather is highly variable through distance and time. [ clarification needed ] [ 1 ] Atmospheric instability encourages vertical motion, which is directly correlated to different types of weather systems and their severity.
Atmospheric instability; Atmospheric stratification, the dividing of the upper reaches of the Earth's atmosphere into stably-stratified layers; Atmospheric circulation, caused by the unstable stratification of the atmosphere; Thermohaline circulation, circulation in the oceans despite stable stratification.
This is an image, captured in San Francisco, which shows the "ocean wave" like pattern associated with the Kelvin–Helmholtz instability forming in clouds. The Kelvin–Helmholtz instability (KHI) is an application of hydrodynamic stability that can be seen in nature. It occurs when there are two fluids flowing at different velocities.
In chemistry, chemical stability is the thermodynamic stability of a chemical system, in particular a chemical compound or a polymer. [1] Colloquially, it may instead refer to kinetic persistence, the shelf-life of a metastable substance or system; that is, the timescale over which it begins to degrade.
Dynamic instability may refer to any of several scientific phenomena: Aircraft dynamic modes, including aircraft dynamic instability; Atmospheric instability, in meteorology; Dynamic instability of microtubules, in biology; Firehose instability, in astrophysics; Flutter, in aeroelasticity, a branch of mechanics; Hydrodynamic instability, in ...
Job ads that list "current employment" as a requirement are becoming less common, thanks to a chorus of outrage, and laws declaring it illegal discrimination in several states. But some employers ...
RT instability fingers evident in the Crab Nebula. The Rayleigh–Taylor instability, or RT instability (after Lord Rayleigh and G. I. Taylor), is an instability of an interface between two fluids of different densities which occurs when the lighter fluid is pushing the heavier fluid.