The coin reappears because the water bends, or refracts, the light travelling from the coin so that it can now reach your eye.

At home 5-11 11-14

The text will look bigger! The water drop acts as a magnifying lens. Light from the page travelling through the drop it is...

At home 5-11 11-14

A selection of home experiments that are suitable to use with your students remotely to support and develop their...

Remote teaching support 11-14 14-16 16-19

A selection of home experiments and online simulations that are suitable to use with your students aged 11-14 (KS3) whilst...

Remote teaching support 11-14

During the construction of the Hubble Space Telescope’s mirror, a device called a null corrector was used to shine a beam of...

Stories from Physics 11-14 14-16

A cloud of gas in the Milky Way was observed refracting the radio wave emissions of a distant quasar, to form multiple images...

Stories from Physics 11-14 14-16

Refraction due to the temperature gradients in the atmosphere can cause a number of mirage effects.

Stories from Physics 11-14 14-16

In around AD 200, Alexander of Aphrodisius observed that, during rain, the area between primary and secondary rainbows appears...

Stories from Physics 11-14 14-16

The green flash is a rare optical phenomenon visible at sunrise and sunset.

Stories from Physics 11-14 14-16