Editing 1604: Snakes
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In the comic, [[Megan]] confuses a popular method of identification of the dangerous North American {{w|coral snake}} by its red, yellow, and black stripes with the {{w|Electronic color code|color-coding system}} used to indicate the resistance of electrical resistors. | In the comic, [[Megan]] confuses a popular method of identification of the dangerous North American {{w|coral snake}} by its red, yellow, and black stripes with the {{w|Electronic color code|color-coding system}} used to indicate the resistance of electrical resistors. | ||
− | The coral snake has red bands adjacent to its yellow bands. However, coral snakes are {{w|mimicry|mimicked}} by nonvenomous species with similar coloring, such as the {{w|milk snake}}, whose red bands are not adjacent to its yellow bands. | + | The coral snake has red bands adjacent to its yellow bands. However, coral snakes are {{w|mimicry|mimicked}} by nonvenomous species with similar coloring, such as the {{w|milk snake}}, whose red bands are not adjacent to its yellow bands. This has led to a variety of rhyming {{w|mnemonic}}s, such as “Red touches yellow, kill a fellow; red touches black, friend of Jack.” |
− | + | In electronics, {{w|resistor}}s have their parameters marked on their body using colored bands. Resistors have at least three bands to identify their resistance value in {{w|ohm}}s, followed by an optional fourth band showing the {{w|engineering tolerance|tolerance}} as within the bounds of a certain percentage of the aforementioned resistance value. A red band followed by a yellow and a black one identifies a 24 ohm resistor (the Omega symbol, “Ω”, stands for ohms). The lack of a fourth band means the tolerance is ±20%, so the actual resistance will be between 19.2Ω and 28.8Ω. See this [http://www.audionotekits.com/resistorcodes.html resistor code calculator]. Resistor color codes were also mentioned in [[227: Color Codes]]. | |
− | The title text refers to the fourth band specifying the tolerance but interprets it as the snake's tolerance for being held before biting, instead of the measure of the imprecision of the 24 ohms. In the case of | + | Therefore, Megan is actually holding a coral snake, which contains the most potent venom of any snake in North America. This assumes, of course, that the comic takes place in North America. The familiar mnemonic does not apply to South and Central American coral snakes. |
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+ | The title text refers to the fourth band specifying the tolerance but interprets it as the snake's tolerance for being held before biting, instead of the measure of the imprecision of the 24 ohms. In the case of black, this would refer to a tolerance value of 0. | ||
==Transcript== | ==Transcript== |