Reflection and Refraction are key items in terms of understanding our world and how light brightens up everything. Why do straws appear to break in a glass of water? Why does a rainbow exist and how ...

Waves close wavesVibrations that transfer energy from place to place without the transference of matter. - including sound and light - can be reflected at the boundary between two different materials.

Three comprehensive and fully resourced lessons on refraction, reflection and lenses for middle school. Each topic comes with an engaging, animated PowerPoint and eleven printables which make even the ...

A ripple tank can be used to investigate the frequency close frequencyThe number of waves produced each second. The unit of frequency is hertz (Hz)., wavelength close wavelengthThe length of a single ...

The first law of refraction states that the incident rays, refracted rays, and the normal to the interface at the point of incidence, all lie in the same plane. The ratio of the sine of the angle of ...

This is an article from Curious Kids, a series for children. The Conversation is asking kids to send in questions they’d like an expert to answer. All questions are welcome – serious, weird or wacky!

Techniques for showing water without calculating itWhen you stand by the water in the latest games, ripples spread, light refracts, and your character is faintly reflected on the water's surface at ...

At the interface between two facets of an artificial crystal, sound waves can be transmitted in the opposite direction to that expected, and undergo no reflection. Such wave behaviour could have many ...

A team of researchers with members from Wuhan University and the University of Texas has created an artificial material that offers both negative refraction and no reflection. In their paper published ...