In the realm of physics, the speed of light is considered one of the most fundamental constants in the universe, dictating ...

THE hypothesis that light always seems to have the same speed in spite of relative motion of source and observer can be tested directly by measuring the speed of light received from approaching ...

References [1] Notes on the Sagnac effect in general relativity. General Relativity and Gravitation (2018). [2] A review of one-way and two-way experiments to test the isotropy of the speed of light.

On this day in 1905 Albert Einstein published his paper introducing special relativity in a German physics journal. Entitled ...

July 9 was predicted to have a shorter "length of day" than usual due to an increase in Earth's rotation speed. See which other days will be shorter ...

India's UPI surpasses all countries in payment speed, with over 18 billion monthly transactions. IMF notes a decline in cash ...

Thanks to atomic clocks (and all the worldly forces that influence them), scientists know that Earth's rotation has begun to ...

YES Bank stock slipped 0.45% to Rs 19.73 today against the previous close of Rs 19.82 on BSE. Market cap of the bank stood at ...

The idea of a particle that races faster than light has long fascinated physicists. Known as the tachyon, it was originally ...

India leads in payment speed globally, driven by UPIs rapid growth, according to an IMF note highlighting significant ...

A timelapse video shows the dramatic speed at which a Texas river swelled with flood water just as the developing disaster ...