Light changes speed as it passes from one medium to another. This is called refraction. The frequency of light does not change as it refracts. The refractive index of a material is a measure of ...

You need to know about these quantities used in waves - what they mean, the symbols used for them and the units used to measure them. Don't get confused with this quantity frequency. It is not a ...

As quantum computers threaten traditional encryption, researchers are developing quantum networks to enable ultra-secure communication. Scientists at Leibniz University Hannover have pioneered a new ...

Because the bomb cyclone combined with an atmospheric river, meteorologists have called it a "once-in-a-decade storm," and Earth.com examined the increasing frequency of such storms in recent years.

Two researchers from the Leibniz University Hannover demonstrate a dynamically adaptable, resource-minimised quantum key distribution exploiting the photon colours for the first time.

In the world of modern optics, frequency combs are invaluable tools. These devices act as rulers for measuring light, enabling breakthroughs in telecommunications, environmental monitoring ...