Search results
Results from the WOW.Com Content Network
Many such theories have proposed but none been successful producing quantitative agreement with the results of modern astrophysical observations. Nevertheless, the time between 10 −43 and 10 −36 seconds has been called the grand unification epoch. [22] [23] Before the GUT epoch the temperature of the universe exceeded 10 15 GeV.
He obtained many patents; the first one specifically using the name Calculagraph was No. 583320, issued May 25, 1897. [3] The characteristic aspect of the machine's design is its automatic performance of elapsed-time calculations, as calculating the difference between two times manually is a tedious and error-prone process, and the machines ...
c. 10 −33 seconds: Space is subjected to inflation, expanding by a factor of the order of 10 26 over a time of the order of 10 −33 to 10 −32 seconds. The universe is supercooled from about 10 27 down to 10 22 kelvin. [3] c. 10 −32 seconds: Cosmic inflation ends.
To show that, one can apply Noether's theorem to a body that freely falls into the well from infinity. Then the time invariance of the metric implies conservation of the quantity g ( v , d t ) = v 0 / T 2 {\displaystyle g(v,dt)=v^{0}/T^{2}} , where v 0 {\displaystyle v^{0}} is the time component of the 4-velocity v {\displaystyle v} of the body.
The emergence of the muons is caused by the collision of cosmic rays with the upper atmosphere, after which the muons reach Earth. The probability that muons can reach the Earth depends on their half-life, which itself is modified by the relativistic corrections of two quantities: a) the mean lifetime of muons and b) the length between the upper and lower atmosphere (at Earth's surface).
If one reference frame assigns precisely the same time to two events that are at different points in space, a reference frame that is moving relative to the first will generally assign different times to the two events (the only exception being when motion is exactly perpendicular to the line connecting the locations of both events).
Yahoo faz parte da família de marcas Yahoo. O Yahoo coletará e usará seus dados como parte dos serviços oferecidos, para entender seus interesses e oferecer e mensurar anúncios personalizados.
But if the UTC timescale is being used, a day containing a positive leap second contains 86,401 seconds (or in the unlikely event of a negative leap second, 86,399 seconds). One authoritative source, the Standards of Fundamental Astronomy (SOFA), deals with this issue by treating days containing a leap second as having a different length ...