Planck Time Because 5.4*10^-44 seconds
1
Nano second maybe?
a femto second is 1000 times smaller 10-15 an atto second is 1000000 times smaller 10-18 According to current thinking, one Planck time = 5.39 * 10-44 seconds is the smallest unit of time that it will ever be possible to measure.
Many arxiv papers state that the Planck length is the smallest argue convincingly that lengths below the Planck length cannot be measured.
it usto be big now its smaller :]
A modified form of Planck's constant called h-bar (ℏ), or the reduced Planck's constant, in which ℏ equals h divided by 2π, is the quantization of angular momentum. For example, the angular momentum of an electron bound to an atomic nucleus is quantized and can only be a multiple of h-bar.
Yes
10 to the power of −44 (tP) is known as Planck time. It is the unit of time for some natural systems. 10 to the power of −24 yoctosecond is one quadrillionth of a second.
Nano second maybe?
There are 1000 yoctoseconds in one zeptosecond. Therefore, a yoctosecond is oen thousandth the length of a zeptosecond. As of 2011, yocto- is the smallest SI prefix in use. yoctosecond means One septillionth (10 -24) of a second. zeptosecond means One sextillionth (10 -21) of a second
An attosecond is one quintillionth (10 to the power of minus 18) of a second. As of 2006, the smallest unit of time that was directly measured was on the order of 1 attosecond (10−18 s), or about 1026 Planck times. In physics, the Planck time, (tP), is the unit of time in the system of natural units known as Planck units. It is the time required for light to travel, in a vacuum, a distance of 1 Planck length. The unit is named after Max Planck, who was the first to propose it.
Units of time widely used in Physics and other branches of science and engineering include: -- millisecond -- microsecond -- nanosecond -- picosecond -- femtosecond -- yoctosecond
They just divide up seconds, into milli- micro- nano- etc. It's possible that the shortest interval of time is 10 to the -43 power seconds ... if time is discreet. Further details: The smallest measurable and meaningful unit of time is Planck time. In physics, this is equal to the time it takes for light to travel, in a vacuum, a distance of 1 Planck length. However, since most of us cannot relate to physics, the shortest unit of time is the Yoctosecond, which is one septillionth (short scale) of a second.
Planck length and Planck time Planck time is the time it would take a photon moving at the speed of light in a vacuum to cross a distance equal to the Planck length. The Planck length is 1.616252 × 10−35 meters, and the Planck time is 5.39121 × 10−44 seconds. Links are provided to the relevant Wikipedia articles.
"Speed" is weird Word to use here. "What time unit is shorter than a nanosecond" would have made more sense. "Nano" is a prefix from the International Standard of Units. There are 10 deciseconds in a second. 100 centiseconds 1,000 milliseconds 1,000,000 microseconds 1,000,000,000 nanoseconds 1,000,000,000,000 picaseconds 1,000,000,000,000,000 femtoseconds 1,000,000,000,000,000,000 attoseconds 1,000,000,000,000,000,000,000 zeptoseconds 1,000,000,000,000,000,000,000,000 yoctoseconds See the link below for more information.
a pico second
The "Planck units" are generally the smallest units used - except for the Planck unit for mass, which is fairly large.
a femto second is 1000 times smaller 10-15 an atto second is 1000000 times smaller 10-18 According to current thinking, one Planck time = 5.39 * 10-44 seconds is the smallest unit of time that it will ever be possible to measure.