Ultraviolet light is the cause of [skin cancer]?s such as melanoma. The radiation ionises DNA molecules in skin cells, causing mutations which can result in cancerous growths. As a defence to this the body tan?s when exposed to moderate (depending on [skin type]?) levels of radiation by releasing the brown pigment melanin?. This helps to block UV and prevent damage to the vulnerable skin tissues deeper down. |
Ultraviolet light is the cause of [skin cancer]?s such as melanoma?. The radiation ionises DNA molecules in skin cells, causing mutations which can result in cancerous growths. As a defence to this the body tan?s when exposed to moderate (depending on [skin type]?) levels of radiation by releasing the brown pigment melanin?. This helps to block UV and prevent damage to the vulnerable skin tissues deeper down. |
Ultraviolet lamps are also used in analyzing minerals. Minerals may look the same under visible light, but flouresce to different degress under ultraviolet light. |
Ultraviolet light is the cause of [skin cancer]?s such as melanoma?. The radiation ionises DNA molecules in skin cells, causing mutations which can result in cancerous growths. As a defence to this the body tan?s when exposed to moderate (depending on [skin type]?) levels of radiation by releasing the brown pigment melanin?. This helps to block UV and prevent damage to the vulnerable skin tissues deeper down.
Ultraviolet lamps are also used in analyzing minerals. Minerals may look the same under visible light, but flouresce to different degress under ultraviolet light.