Optical illusions, once attributed to the supernatural, are now understood as tricks of visual perception. This article ...

Time is ticking on an earthly mystery ... Revival's Surviving Members Are Doing Now Did you miss the eclipse? Photos show the moon taking a 'bite' out of sun. Inside the B-17 Flying Fortress ...

Today’s IQ test is presented in the form of a picture of a clock tower, and you need to find the mistake in the picture in 5 seconds. A clock tower scene is depicted in the image shared above.

Time and frequency are the most precisely measurable physical quantities. Currently, atomic clocks, especially atomic optical clocks, set the standard for accuracy. However, the 229 Th nuclear ...