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.” '''THESE MNEMONICS ARE NOT ACCURATE, ESPECIALLY OUTSIDE THE EASTERN UNITED STATES'''. Because Megan is describing a red band being adjacent to a yellow band, she is most likely holding a coral snake, which contains the most potent venom of any snake in North America. |
Instead of realizing the danger, Megan equates the color bands to having the same function as those printed on electrical {{w|resistor}}s. 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). Eastern coral snakes (''Micrurus fulvius''), Texas coral snakes (''Micrurus tener''), and Arizona coral snakes (''Micruroides euryxanthus'', also called Sonoran or western coral snakes) typically have stripes in the pattern red, yellow, black, yellow. Yellow corresponds to a tolerance of ±5%, so the actual resistance will be between 22.8Ω and 25.2Ω. Resistor color codes were also mentioned in [[227: Color Codes]]. | Instead of realizing the danger, Megan equates the color bands to having the same function as those printed on electrical {{w|resistor}}s. 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). Eastern coral snakes (''Micrurus fulvius''), Texas coral snakes (''Micrurus tener''), and Arizona coral snakes (''Micruroides euryxanthus'', also called Sonoran or western coral snakes) typically have stripes in the pattern red, yellow, black, yellow. Yellow corresponds to a tolerance of ±5%, so the actual resistance will be between 22.8Ω and 25.2Ω. Resistor color codes were also mentioned in [[227: Color Codes]]. |