A world-famous light experiment from 1801 has now been carried out with sound for the first time. Research by physicists in ...

The formation of a rainbow requires the observer to be between the sun and falling rain, with the rain in front and the sun behind. Sunlight passes from behind the observer, refracts as it enters each ...

Many of our viewers have noticed rainbow clouds over the past few days. This is actually a rare phenomenon called "cloud iridescence". This happens when sunlight is diffracted off of tiny water ...

The film explores the properties of sound waves in air, demonstrating that sound travels at approximately 1,100 feet per second and reflects similarly to light. Through experiments using echoes, beams ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

High-frequency signals, like those used in 5G communications, are reflected by impedance discontinuities. Their shorter wavelengths can change their impedance. When a signal arrives at an impedance ...

If you looked up at the night sky during the past 24 hours, you might have seen a ring around the moon. Viewers from all over the nation and even in other parts of the world were able to see the halo, ...

VHF is widely used in broadcasting, voice and data communications, avionics, and even some types of radar, but there is a widely held misconception that most VHF propagation is simply “line of sight.” ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

"The colors of the spectrum, then, "are not Qualifications [alterations] of Light … (as 'tis generally believed), but Original and connate properties." When you purchase through links on our site, we ...