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Interactive Screen Experiment

This is an image from an actual lab experiment to demonstrate refraction and total internal reflection of a laser beam in glass.
But it is more than that: it is NOT an animation — it is a real experiment in a real optics lab, documented by hundreds of photographs which operate interactively under the user’s control.
Repeat: none of this is simulated.
To have a go with the real experiment
click on the ‘START EXPERIMENT‘ button below.