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...ultraviolet light: its history, physics and health-giving properties. HISTORY & PHYSICS OF ULTRAVIOLET LIGHT & ITS HEALTH-GIVING PROPERTIES. PLUGS manufacturer's own EQUIPMENT. Ken Smith sez: This ...
2 years ago
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...ultraviolet light: its history, physics and health-giving properties. HISTORY & PHYSICS OF ULTRAVIOLET LIGHT & ITS HEALTH-GIVING PROPERTIES. PLUGS manufacturer's own EQUIPMENT. Ken Smith sez: This ...
2 years ago
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Sponsored film promoting ultraviolet light: its history, physics and health-giving properties.
11m 46s |
2 years ago
The Open Video Project
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hsw
This segment describes the location of ultraviolet rays in the electromagnetic spectrum. This clip also explores the harmful effects of ultraviolet rays and the uses of ultraviolet rays in medicine.
0m 41s |
a year ago
HowStuffWorks
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Medical Reporter Stephanie Stahl reports tanning beds have been reclassified as a definite risk of cancer.
4 months ago
CBS (cbs3 - Philadelphia)
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Sponsored film promoting ultraviolet light: its history, physics and health-giving properties.
11m 35s |
2 years ago
The Open Video Project
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