Exact(2)
That is, in a timescale about 10 minutes, i.e., the timescale for the acoustic gravity wave to reach the ionospheric height and return back to the ground, the waves can spread horizontally at most a few hundred kilometers.
Because human evolution spans a timescale about 4× longer than this, most mutations having an effect on fat storage would be predicted to move to fixation in the population if the TGH was correct – unless such mutations had all occurred in the past 900,000 years.
Similar(58)
This reversal is very sudden on a geologic timescale, apparently taking about 5,000 years.
With the national introduction of the scheme lagging far behind his original timescale, only about 30,000 of the eight million people eligible for the credit have been moved on to the system so far.
It enables adsorption rates to be measured on a timescale of about 1 s.
Auroras and electrojet diminished in intensity and returned to lower latitudes by 5 10 UT, a timescale of about one half hour.
"We can go pick up the rocks, study the minerals, and basically get timescale information about an eruption that happened, let's say, 100,000 years ago," Kahl says.
The number of sunspots strongly varies on a timescale of about 11 years, which is known as the sunspot cycle or solar cycle.
Hence, they settled on the distributions that they published Mode 1 with a radius of about (0.3,upmu hbox {m}), and lognormal standard deviation of 2.16 which population is consistent with a coagulation loss timescale of about 60 days.
Their simulations, in which volcanic gas was injected into a porous zone saturated with lake water, revealed that significant deposition of quartz, sulfur, and clay minerals could occur over a short timescale of about 10 days.
In ultrafast demagnetization experiments [2] a thin ferromagnetic film, e.g., Ni or Fe, is irradiated by a femtosecond laser pulse which is normally linearly polarized and thereafter an ultrafast demagnetization (on the timescale of about 100 fs) without switching of the magnetization can be observed.
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