digplanet beta 1: Athena
Share digplanet:

Agriculture

Applied sciences

Arts

Belief

Business

Chronology

Culture

Education

Environment

Geography

Health

History

Humanities

Language

Law

Life

Mathematics

Nature

People

Politics

Science

Society

Technology

A shake[1] is an informal unit of time equal to 10 nanoseconds, or 10−8 seconds. It has applications in nuclear physics, helping to conveniently express the timing of various events in a nuclear explosion. The typical time required for one step in the chain reaction (i.e. the typical time for each neutron to cause a fission event which releases more neutrons) is of order 1 shake, and the chain reaction is typically complete by 50 to 100 shakes.[2]

This is also applicable to circuits. Since signal progression in IC chips is very rapid, on the order of nanoseconds, a shake is good measure of how quickly a signal can progress through an IC.

Like many nuclear units, it is derived from Top Secret operations of the Manhattan Project during World War II. The word comes from the expression "two shakes of a lamb's tail," which indicates a very short time interval. For nuclear-bomb designers, 10 nanoseconds was a convenient specific interval to connect to this term.

It has been discussed at length that the oldest documented usage of the phrase "two shakes of a lamb's tail" can be found within the compiled works of Richard Harris Barham called The Ingoldsby Legends.[3]

References[edit]


Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Shake_(unit) — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
500281 videos foundNext > 

MASAYA+TOMO+KUNIMILK+GENKI+AZSA shake unit

MASAYA From Bush Babeez!!! TOMO From KAMIKAZE CLOWNS KUNIMILK From KAMIKAZE CLOWNZ GENKI From DEAD sToCks AZSA From XYZBOYZ aka BROTHERHOOD JPN Special shake...

Harlem Shake Unit E Explorers Romford District

Harlem Shake performed by Explorer Scouts From Unit E!! Romford funny.

The Harlem Shake Unit Style

The harlem shake filmed up at the unit where we work on cars. Those involved include, Kammy as Super Man, Usman as Scary Mask, Bob as Bob on a roof, Beasy as...

Harlem Shake Unit 3

7th Floor, Ida Sproul Berkeley Style.

Harlem Shake - Unit 19 xD

Oppaaa Harlem Shake.

Harlem Shake Unit - WePetro 2013

Harlem Shake da galera da Unit, Aracaju-SE.

Harlem Shake - Unit Version

Harlem Shake by UNITS.

Harlem Shake (V-Unit edition) part 1

V-Unit decided to hop on the craze and do the Harlem Shake.

HARLEM SHAKE F UNIT

Fahd Abid, wasey naik, asim khan, hamza, faraz islam , Alpha, Waqas Asghar, Rizwan , Zahid, Khubab, Fowzan, Nabil.

Harlem Shake (Unit 8 Pink Mansion)

LET'S DO THE HARLEM SHAKE! At Unit 8, P.M. Some of the best times with my colleagues! Thanks for the song Baauer - Harlem Shake Buy on iTunes http://bit.ly/H...

500281 videos foundNext > 

We're sorry, but there's no news about "Shake (unit)" right now.

Loading

Oops, we seem to be having trouble contacting Twitter

Talk About Shake (unit)

You can talk about Shake (unit) with people all over the world in our discussions.

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!