A group of 9 prisms allows a circular light path and gives multiple internal reflections.
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Prisms
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Tag Archives: violet laser
Crookes Radiometer
This is a Crookes Radiometer. An old physics department staple. What does it do? On exposure to light or heat, the vanes turn on a low friction mount. Here a green laser (14 mW green and 9 mW infrared) starts it turning.
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Phosphorescence
Phosphorescence silhouette “photos” can be taken with a camera flash due to persistence of the image.
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Blu-ray Violet Laser
A Blu-ray violet laser is made up into a hand held unit.
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