Answer: True. Ideally, total internal reflection means that all the light is reflected back into the denser medium, with no ...

For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays - without the need for artificially manufactured metamaterials. Scientists have long ...

It’s all to do with the raindrops, says one reader, with them needing to be relatively uniform in size and well separated for ...

Materials scientists can learn a lot about a sample material by shooting lasers at it. With nonlinear optical microscopy—a ...

Horiba has developed a particle size distribution measuring device that accurately measures particle size distribution even in the presence of similar-shaped particles. The device uses image ...

Seventeen Czech weather stations recorded record lows as autumn brought its first frost — and a stunning halo appeared in the sky near Veverka, Třebíč region.