Look up nanosecond in Wiktionary, the free dictionary.
A nanosecond (ns) is an SI unit of time equal to one thousand-millionth of a second (or one billionth of a second), that is, 1/1,000,000,000 of a second, or 10−9 seconds.
The term combines the prefix nano- with the basic unit for one-sixtieth of a minute.
A nanosecond is equal to 1000 picoseconds or 1⁄1000 microsecond. Time units ranging between 10−8 and 10−7 seconds are typically expressed as tens or hundreds of nanoseconds.
Time units of this granularity are commonly encountered in telecommunications, pulsed lasers, and related aspects of electronics.
0.5 nanoseconds – the half-life of beryllium-13.
0.96 nanoseconds – 100 Gigabit Ethernet Interpacket gap
1.0 nanosecond – cycle time of an electromagnetic wave with a frequency of 1 GHz (1×109 hertz).
1.0 nanosecond – electromagnetic wavelength of 1 light-nanosecond. Equivalent to 0.3m radio band.
1.016703362164 nanoseconds (by definition) – time taken by light to travel 1 foot in a vacuum.[n 1]
3.3356409519815 nanoseconds (by definition) – time taken by light to travel 1 metre in a vacuum.
10 nanoseconds – one "shake", (as in a "shake of a lamb's tail") approximate time of one generation of a nuclear chain reaction with fast neutrons
10 nanoseconds – cycle time for frequency 100 MHz (1×108 hertz), radio wavelength 3 m (VHF, FM band)
12 nanoseconds – mean lifetime of a K meson
10 nanoseconds – half-life of lithium-12
20–40 nanoseconds – time of fusion reaction in a hydrogen bomb
30 nanoseconds – half-life of carbon-21
77 nanoseconds – a sixth (a 60th of a 60th of a 60th of a 60th of a second)
96 nanoseconds – Gigabit Ethernet Interpacket gap
100 nanoseconds – cycle time for frequency 10 MHz, radio wavelength 30 m (shortwave)
299 nanoseconds – half-life of polonium-212
333 nanoseconds – cycle time of highest medium wave radio frequency, 3 MHz
500 nanoseconds – T1 time of Josephson phase qubit (see also Qubit) as of May 2005
1,000 nanoseconds – one microsecond
1,000,000 nanoseconds – one millisecond (ms)
International System of Units
Orders of magnitude (time)
^By definition of the "foot" as exactly 1/3 yards, and of the international yard as "exactly 0.9144 metres", and of the metre (SI unit) defined by the International Bureau of Weights and Measures as the "length of the path traveled by light in vacuum during a time interval of 1/299792458 of a second". The time taken by light to travel 1 foot in a vacuum is therefore (1/299792458)x(0.9144/3) seconds, or 1.016703362164 nanoseconds.
"Official BIPM definition of the metre". BIPM. Retrieved 2008-09-22.
^http://pdg.lbl.gov/2012/listings/rpp2012-list-K-plus-minus.pdf. Missing or empty |title= (help); External link in |website= (help); Missing or empty |url= (help)
Orders of magnitude of time
by powers of seconds
Terasecond and longer
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Experimental investigation on dynamic characteristics and strengthening mechanism of laser-induced cavitation bubbles.
Ren XD1, He H2, Tong YQ2, Ren YP2, Yuan SQ3, Liu R2, Zuo CY2, Wu K2, Sui S2, Wang DS2.
Ultrasonics sonochemistry.Ultrason Sonochem.2016 Sep;32:218-23. doi: 10.1016/j.ultsonch.2016.03.012. Epub 2016 Mar 10.
The dynamic features of nanosecond laser-induced cavitation bubbles near the light alloy boundary were investigated with the high-speed photography. The shock-waves and the dynamic characteristics of the cavitation bubbles generated by the laser were detected using the hydrophone. The dynamic featur
Excited State Electron Distribution and Role of the Terminal Amine in Acidic and Basic Tryptophan Dipeptide Fluorescence.
Eisenberg AS1, Nathan M1, Juszczak LJ2.
Journal of molecular structure.J Mol Struct.2016 Aug 15;1118:56-67.
The results of quantum yield (QY) study of tryptophanyl glutamate (Trp-Glu), tryptophanyl lysine (Trp-Lys) and lysinyl tryptophan (Lys-Trp) dipeptides over the pH range, 1.5 - 13, show that the charge state of the N-terminal amine, and not the nominal molecular charge determines the QY. When the ter
Bioelectrochemistry (Amsterdam, Netherlands).Bioelectrochemistry.2016 Aug;110:1-12. doi: 10.1016/j.bioelechem.2016.02.011. Epub 2016 Feb 27.
For this systematic review, 203 published reports on effects of electroporation using nanosecond high-voltage electric pulses (nsEP) on eukaryotic cells (human, animal, plant) in vitro were analyzed. A field synopsis summarizes current published data in the field with respect to publication year, ce