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Light refraction is caused when the ray of light travels through different mediums and slows down or speeds up. In the case of this stick in the pool, water and air are two different mediums.

Light is refracted when it enters a material like water or glass. Depending on the density of the material, light will reduce in speed as it travels through, causing it to change direction.

Instructions Place a drawing of a spider under the glass. Slowly fill the glass with water and watch the spider disappear. Why does it work? Light (from the sun or artificial light) travels in a ...

"Cloaking Device Breakthrough? Negative Refraction Of Visible Light Demonstrated." ScienceDaily. ScienceDaily, 23 March 2007. <www.sciencedaily.com / releases / 2007 / 03 / 070322132145.htm>.

The bending and bouncing of light.Lawrence Bragg begins by demonstrating some of the familiar effects of reflections and refraction by means of a beam of light passing through water, a prism and ...

Explores the principles of light, reflection, and magnification through hands-on experiments. Children observe how a magnifying glass focuses sunlight to create heat, examine the effects of light ...

Scientists have created a new class of laser beam that appears to violate long-held laws of light physics. Known as “spacetime wave packets,” these lasers follow different rules of refraction ...

Learn about refraction, ray diagrams and how convex lenses bend light rays with this guide for KS3 physics students aged 11-14 from BBC Bitesize.