Follow these refraction tutorials to learn all about refraction with WonderHowTo's collection of free how-to videos and articles, like Make coins disappear with light refraction magic trick, Illustrate a reflected image and plot its location, and Calculate the Distance to the Horizon.
You'll also find several great education tutorials in the Education category.
Most coin vanishing tricks rely on sleights of hand and some skill; ...more
For both reflection and refraction scenarios, ray diagrams have been a ...more
Have you ever watched the sun disappear into the horizon and wondered, "How far is the horizon from where I'm standing?" If you can measure ...more
More science-geek-art: amazing photographs by Alan Jaras. Apparently the images have not been altered in any way (computer generated or ...more
