Speed of light exceeded by 60 billionths of a second

[luckytxn 2,265]

I noticed that as well. The first few comments take umbrage at his skepticism, then it deteriorates into a flamefest. The same thing happened when I offered a simple proof for Fermat's Last Theorem more than twenty years ago.

It took a super computer to solve that and many tries at that before it was solved. Why couldn't you solve it on the first try?

[Robert&Karen 264]

60 billions of a second?

186,000/60,000,000,000 (my calc will not handle that)

186/60,000,000

0.0000031 miles per second faster (now multiply by 5,280)

0.016368 feet per second faster (now x12)

0.196416 inches per second faster. Over a mile.

That's quite some measuring equipment they have there!

[웃 910]

60 billions of a second?

186,000/60,000,000,000 (my calc will not handle that)

186/60,000,000

0.0000031 miles per second faster (now multiply by 5,280)

0.016368 feet per second faster (now x12)

0.196416 inches per second faster. Over a mile.

That's quite some measuring equipment they have there!

Nanosecond

A nanosecond (ns) is one billionth of a second (10⁻⁹ s). One nanosecond is to one second as one second is to 31.7 years.

The word nanosecond is formed by the prefix nano and the unit second. Its symbol is ns.

A nanosecond is equal to 1000 picoseconds or ¹⁄₁₀₀₀ microsecond. Because the next SI unit is 1000 times larger, times of 10⁻⁸and 10⁻⁷ seconds are typically expressed as tens or hundreds of nanoseconds.

Times of this magnitude are commonly encountered in telecommunications, pulsed lasers and some areas of electronics. Some notable measurements in this range include:

[edit]Common measurements

• 0.5 nanoseconds (0.5 ns) - the average life of a molecule of positronium hydride.
• 1.0 nanosecond (1.0 ns) – cycle time for radio frequency 1 GHz (1×10⁹hertz), an inverse unit. This corresponds to a radiowavelength of 1 light-nanosecond or 0.3 m, as can be calculated by multiplying 1 ns by the speed of light (approximately 3×10⁸m/s) to determine the distance traveled.
• 1.0 nanosecond (1.0 ns) – cycle time for a 1 GHz processor. Common processors today have frequencies around 1-3.5 GHz, so the cycle time is somewhat shorter than a nanosecond.
• 1.017 nanoseconds (approximately) – time taken for light to travel 1 foot.
• 3.33564095 nanoseconds (approximately) – time taken for light to travel 1 metre in vacuum.^[1] (In air or water light travels more slowly; see index of refraction)
• 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 (10 ns) – cycle time for frequency 100 megahertz (1×10⁸Hertz), radio wavelength 3 m (VHF, FM band)
• 12 nanoseconds – half-life of a K meson
• 20–40 nanoseconds – time of fusion reaction in a hydrogen bomb
• 77 nanoseconds – a sixth (a 60th of a 60th of a 60th of a 60th of a second)
• 100 nanoseconds – cycle time for frequency 10 MHz, radio wavelength 30 m (shortwave)
• 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

[Ban Hammer 14,268]

now what's a shake?

[웃 910]

now what's a shake?

Shake (unit)

From Wikipedia, the free encyclopedia (Redirected from Shake (time))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 (ie. 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 on 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.

• ^ "Definition" University of North Carolina at Chapel Hill website
• ^ http://docs.nrdc.org/nuclear/files/nuc_04109401a_122.pdf

[Ban Hammer 14,268]

[Robert&Karen 264]

And a "moment" is 90 seconds, just so you know.