Editing 1469: UV
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==Explanation== | ==Explanation== | ||
β | {{w|Ultraviolet}} light (abbreviated UV light, as in the title of the comic) is a kind of light that is slightly more energetic than the light in the {{w|visible light|visible}} portion of the electromagnetic spectrum. Ultraviolet light is normally by itself invisible to human eye, but can induce {{w| | + | {{w|Ultraviolet}} light (abbreviated UV light, as in the title of the comic) is a kind of light that is slightly more energetic than the light in the {{w|visible light|visible}} portion of the electromagnetic spectrum. Ultraviolet light is normally by itself invisible to human eye, but can induce {{w|fluorescense}} (glowing) of certain organic molecules. A UV flashlight can thus be a means to detect small amounts of blood, semen, and urine on surfaces. |
The first part of this comic focuses on [[Megan]] showing off her new {{w|Black light|UV flashlight}} to [[Cueball]] by revealing how disgusting their bathroom appears in UV light despite how clean it appears normally. She manages this due to UV light's special property of causing chemicals in urine to glow. Both Cueball and Megan are horrified by their discovery. This is a common reaction in the face of more sensitive diagnostic tests. Cueball's comment is a reference to the 1979 sci-fi film {{w|Alien (film)|Alien}}. | The first part of this comic focuses on [[Megan]] showing off her new {{w|Black light|UV flashlight}} to [[Cueball]] by revealing how disgusting their bathroom appears in UV light despite how clean it appears normally. She manages this due to UV light's special property of causing chemicals in urine to glow. Both Cueball and Megan are horrified by their discovery. This is a common reaction in the face of more sensitive diagnostic tests. Cueball's comment is a reference to the 1979 sci-fi film {{w|Alien (film)|Alien}}. |