Tag Archives: time

The Shortest Time Interval Ever Measured

According to The Times of India, in 2010 a group of German physicists claimed “to have measured the shortest-ever time interval by discovering the tiniest duration an electron takes to leave the atom.” The scientists found that “when light is absorbed by atoms, the electrons become excited and get ejected from the atom if the [...]

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7 (International System of Units [SI] base units)

The International System of Units (SI) is founded on seven SI base units for seven base quantities assumed to be mutually independent, as given in Table 1. Here is the SI list from the NIST reference on Constants, Units and Uncertainty. Table 1.  SI base units SI base unit Base quantity Name Symbol length meter [...]

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(16)75

In 1675, Charles II of England founded the Royal Observatory Greenwich in order to improve global naval navigation (10+7).  Many disasters had occurred at sea because sailors did not know the precise longitude (East/West direction) of where they were when out of sight of land.  “In 1714, Parliament established a panel of experts, the Board [...]

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9

9 tools that help us measure the world around us! Some tools help us to measure distance, weight, temperature, or time. Others to see at various powers of ten! 1) thermometer 2) microscope 3) binoculars 4) scale 5) rulers 6) telescope 7) clocks 8 ) magnifying glass 9) compasses

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What is 33 Years?

This is an image of the star Pollux, also called Beta Geminorum, taken by Nagano based photographer Yuugi Kitahara. Pollux is one of the twenty brightest stars in the night sky (it is also the nearest Giant star), but today we are considering it from the standpoint of distance.  Pollux is 33 light-years away from [...]

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  • Countdown to Powers of Ten Day

    • 10/10/10 1382 days ago