explain xkcd - User contributions [en]

Talk:1604: Snakes

2015-11-17T13:50:31Z

SquaredRoot:

I have determined that some of my local wildlife is comprised of 103Ω snakes, with a 1% tolerance for holding. --[[User:SquaredRoot|SquaredRoot]] ([[User talk:SquaredRoot|talk]]) 13:46, 17 November 2015 (UTC)

i don't know how to add the omega sign for the units of the resistor in the transcript. i'll leave that to someone more skilled than myself [[User:Beardmcbeardson|Beardmcbeardson]] ([[User talk:Beardmcbeardson|talk]]) 05:26, 16 November 2015 (UTC)

Just copy-and-paste! -N00b {{unsigned ip|108.162.214.77}}

Or find the 'omega' symbol in Windows Character Map. [[User:RAGBRAIvet|RAGBRAIvet]] ([[User talk:RAGBRAIvet|talk]]) 08:37, 16 November 2015 (UTC)

To be exact, a 24Ω resistor would be red, yellow, black; 240Ω would be red, yellow, brown, and so on, along a well-defined sequence. Red, yellow on its own would be missing the final "scaling" colour. [[User:Gearoid|Gearóid]] ([[User talk:Gearoid|talk]]) 08:54, 16 November 2015 (UTC)
:We don't need the scaling colour here, the snake is scaly enough as is. [[User:Matega|Matega]] ([[User talk:Matega|talk]]) 18:58, 16 November 2015 (UTC)

According to https://en.wikipedia.org/wiki/Electronic_color_code， a "black red black red black" resistor shoud be 2kΩ, not 24Ω ... -- Oicebot [[Special:Contributions/162.158.252.119|162.158.252.119]] 09:30, 16 November 2015 (UTC)

The fourth band on a resister is usually the multiplier (the value gets multiplied by 10 to a power according to the colour); it's the fifth that indicates tolerance [[User:sbutler87|sbutler87]]
:The resisteors that I have at hand are coloured the way I remember, Three bands of 'spectrum' colours (including black at zero, brown for 1, leading through the spectrum red to violet until grey at 8 and white at 9), the first two are literal, the third the power of magnitude to adjust up, and a fourth band (metalic silver/gold, to aid identification of the direction to read) as tolerance.
:I know there's variations, and zero ohm (or effectively so) links are a single black band, but that's all I've ever needed to know, in my time. (When I don't put something across mulimeter probes, just to make sure...) [[Special:Contributions/162.158.152.221|162.158.152.221]] 11:57, 16 November 2015 (UTC)
::The last band is tolerance, and there can be as many bands before that as the manufacturer needs. It's always the last band, no matter how many come before. [[User:Mikemk|Mikemk]] ([[User talk:Mikemk|talk]]) 18:18, 16 November 2015 (UTC)

FWIW: raw image: [[File:snake-pixelated.png]] and with added math: [[File:snake-interpolated.png]]. - [[User:Frankie|Frankie]] ([[User talk:Frankie|talk]]) 12:28, 16 November 2015 (UTC)

Does this mean a 200ohm snake is safe? (Red black yellow) [[User:Seebert|Seebert]] ([[User talk:Seebert|talk]]) 14:51, 16 November 2015 (UTC)
:That would be 20*10^4 ohm = 240.000 ohm if I get it right? --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 15:13, 16 November 2015 (UTC)
::Red black yellow would be 200000 ohms, or 200kΩ (200 kilohms). Red-black is 20, and yellow is basically adding 4 zeroes to that. [[User:SuperSupermario24|Just some random derp]] 17:56, 16 November 2015 (UTC)
:::Ups, I put in the 4 from the comic, 20*10^4 ohm = 200.000 (not 240.000 as I wrote at first). Thanks for correcting ;-) --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 19:48, 16 November 2015 (UTC)
:As far as I can see, it's <code>black yellow red yellow</code>, repeated, and red does not touch black... {{User:Grep/signature|20:57, 16 November 2015}}

Do they still use color bands? Do they still teach them to technicians? Should parts of this explanation be rewritten in the past tense mentioning that Randal is getting old? I though the bands were relegated to the dead languages section, right next to linear B, once surface mounted components came along. I certainly haven't used them since around 1990, and would not expect my younger technicians to understand them.
--[[Special:Contributions/198.41.235.101|198.41.235.101]] 19:58, 16 November 2015 (UTC)
:I garuntee that they still do.--[[Special:Contributions/199.27.133.47|199.27.133.47]] 23:21, 16 November 2015 (UTC)
:Being one who is actively learning electronics I can say firsthand that they still do teach color bands, and almost all the resistors we use in class are color banded. [[User:SuperSupermario24|Just some random derp]] 23:27, 16 November 2015 (UTC)
:That's just the thing, though; surface mount components aren't used everywhere. Hobbyists and classroom environments still use through-hole resistors and DIP TTL ICs and the like because they're easier to breadboard and reuse, and therefore cheaper. SMT, CMOS, and other things have advantages for most commercial applications but not for everything else.[[Special:Contributions/108.162.221.36|108.162.221.36]] 05:07, 17 November 2015 (UTC)

I fucking lost it when I read this. Easily one of the funniest xkcds in my opinion haha [[User:International Space Station|International Space Station]] ([[User talk:International Space Station|talk]]) 12:32, 17 November 2015 (UTC)

Talk:1604: Snakes

2015-11-17T13:47:41Z

SquaredRoot:

I calculated that some of my local wildlife is comprised of 103Ω snakes. --[[User:SquaredRoot|SquaredRoot]] ([[User talk:SquaredRoot|talk]]) 13:46, 17 November 2015 (UTC)

i don't know how to add the omega sign for the units of the resistor in the transcript. i'll leave that to someone more skilled than myself [[User:Beardmcbeardson|Beardmcbeardson]] ([[User talk:Beardmcbeardson|talk]]) 05:26, 16 November 2015 (UTC)

Just copy-and-paste! -N00b {{unsigned ip|108.162.214.77}}

Or find the 'omega' symbol in Windows Character Map. [[User:RAGBRAIvet|RAGBRAIvet]] ([[User talk:RAGBRAIvet|talk]]) 08:37, 16 November 2015 (UTC)

To be exact, a 24Ω resistor would be red, yellow, black; 240Ω would be red, yellow, brown, and so on, along a well-defined sequence. Red, yellow on its own would be missing the final "scaling" colour. [[User:Gearoid|Gearóid]] ([[User talk:Gearoid|talk]]) 08:54, 16 November 2015 (UTC)
:We don't need the scaling colour here, the snake is scaly enough as is. [[User:Matega|Matega]] ([[User talk:Matega|talk]]) 18:58, 16 November 2015 (UTC)

According to https://en.wikipedia.org/wiki/Electronic_color_code， a "black red black red black" resistor shoud be 2kΩ, not 24Ω ... -- Oicebot [[Special:Contributions/162.158.252.119|162.158.252.119]] 09:30, 16 November 2015 (UTC)

The fourth band on a resister is usually the multiplier (the value gets multiplied by 10 to a power according to the colour); it's the fifth that indicates tolerance [[User:sbutler87|sbutler87]]
:The resisteors that I have at hand are coloured the way I remember, Three bands of 'spectrum' colours (including black at zero, brown for 1, leading through the spectrum red to violet until grey at 8 and white at 9), the first two are literal, the third the power of magnitude to adjust up, and a fourth band (metalic silver/gold, to aid identification of the direction to read) as tolerance.
:I know there's variations, and zero ohm (or effectively so) links are a single black band, but that's all I've ever needed to know, in my time. (When I don't put something across mulimeter probes, just to make sure...) [[Special:Contributions/162.158.152.221|162.158.152.221]] 11:57, 16 November 2015 (UTC)
::The last band is tolerance, and there can be as many bands before that as the manufacturer needs. It's always the last band, no matter how many come before. [[User:Mikemk|Mikemk]] ([[User talk:Mikemk|talk]]) 18:18, 16 November 2015 (UTC)

FWIW: raw image: [[File:snake-pixelated.png]] and with added math: [[File:snake-interpolated.png]]. - [[User:Frankie|Frankie]] ([[User talk:Frankie|talk]]) 12:28, 16 November 2015 (UTC)

Does this mean a 200ohm snake is safe? (Red black yellow) [[User:Seebert|Seebert]] ([[User talk:Seebert|talk]]) 14:51, 16 November 2015 (UTC)
:That would be 20*10^4 ohm = 240.000 ohm if I get it right? --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 15:13, 16 November 2015 (UTC)
::Red black yellow would be 200000 ohms, or 200kΩ (200 kilohms). Red-black is 20, and yellow is basically adding 4 zeroes to that. [[User:SuperSupermario24|Just some random derp]] 17:56, 16 November 2015 (UTC)
:::Ups, I put in the 4 from the comic, 20*10^4 ohm = 200.000 (not 240.000 as I wrote at first). Thanks for correcting ;-) --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 19:48, 16 November 2015 (UTC)
:As far as I can see, it's <code>black yellow red yellow</code>, repeated, and red does not touch black... {{User:Grep/signature|20:57, 16 November 2015}}

Do they still use color bands? Do they still teach them to technicians? Should parts of this explanation be rewritten in the past tense mentioning that Randal is getting old? I though the bands were relegated to the dead languages section, right next to linear B, once surface mounted components came along. I certainly haven't used them since around 1990, and would not expect my younger technicians to understand them.
--[[Special:Contributions/198.41.235.101|198.41.235.101]] 19:58, 16 November 2015 (UTC)
:I garuntee that they still do.--[[Special:Contributions/199.27.133.47|199.27.133.47]] 23:21, 16 November 2015 (UTC)
:Being one who is actively learning electronics I can say firsthand that they still do teach color bands, and almost all the resistors we use in class are color banded. [[User:SuperSupermario24|Just some random derp]] 23:27, 16 November 2015 (UTC)
:That's just the thing, though; surface mount components aren't used everywhere. Hobbyists and classroom environments still use through-hole resistors and DIP TTL ICs and the like because they're easier to breadboard and reuse, and therefore cheaper. SMT, CMOS, and other things have advantages for most commercial applications but not for everything else.[[Special:Contributions/108.162.221.36|108.162.221.36]] 05:07, 17 November 2015 (UTC)

I fucking lost it when I read this. Easily one of the funniest xkcds in my opinion haha [[User:International Space Station|International Space Station]] ([[User talk:International Space Station|talk]]) 12:32, 17 November 2015 (UTC)

Talk:1604: Snakes

2015-11-17T13:46:53Z

SquaredRoot:

I calculated that some of my local wildlife is comprised of 103 Ω snakes. --[[User:SquaredRoot|SquaredRoot]] ([[User talk:SquaredRoot|talk]]) 13:46, 17 November 2015 (UTC)

i don't know how to add the omega sign for the units of the resistor in the transcript. i'll leave that to someone more skilled than myself [[User:Beardmcbeardson|Beardmcbeardson]] ([[User talk:Beardmcbeardson|talk]]) 05:26, 16 November 2015 (UTC)

Just copy-and-paste! -N00b {{unsigned ip|108.162.214.77}}

Or find the 'omega' symbol in Windows Character Map. [[User:RAGBRAIvet|RAGBRAIvet]] ([[User talk:RAGBRAIvet|talk]]) 08:37, 16 November 2015 (UTC)

To be exact, a 24Ω resistor would be red, yellow, black; 240Ω would be red, yellow, brown, and so on, along a well-defined sequence. Red, yellow on its own would be missing the final "scaling" colour. [[User:Gearoid|Gearóid]] ([[User talk:Gearoid|talk]]) 08:54, 16 November 2015 (UTC)
:We don't need the scaling colour here, the snake is scaly enough as is. [[User:Matega|Matega]] ([[User talk:Matega|talk]]) 18:58, 16 November 2015 (UTC)

According to https://en.wikipedia.org/wiki/Electronic_color_code， a "black red black red black" resistor shoud be 2kΩ, not 24Ω ... -- Oicebot [[Special:Contributions/162.158.252.119|162.158.252.119]] 09:30, 16 November 2015 (UTC)

The fourth band on a resister is usually the multiplier (the value gets multiplied by 10 to a power according to the colour); it's the fifth that indicates tolerance [[User:sbutler87|sbutler87]]
:The resisteors that I have at hand are coloured the way I remember, Three bands of 'spectrum' colours (including black at zero, brown for 1, leading through the spectrum red to violet until grey at 8 and white at 9), the first two are literal, the third the power of magnitude to adjust up, and a fourth band (metalic silver/gold, to aid identification of the direction to read) as tolerance.
:I know there's variations, and zero ohm (or effectively so) links are a single black band, but that's all I've ever needed to know, in my time. (When I don't put something across mulimeter probes, just to make sure...) [[Special:Contributions/162.158.152.221|162.158.152.221]] 11:57, 16 November 2015 (UTC)
::The last band is tolerance, and there can be as many bands before that as the manufacturer needs. It's always the last band, no matter how many come before. [[User:Mikemk|Mikemk]] ([[User talk:Mikemk|talk]]) 18:18, 16 November 2015 (UTC)

FWIW: raw image: [[File:snake-pixelated.png]] and with added math: [[File:snake-interpolated.png]]. - [[User:Frankie|Frankie]] ([[User talk:Frankie|talk]]) 12:28, 16 November 2015 (UTC)

Does this mean a 200ohm snake is safe? (Red black yellow) [[User:Seebert|Seebert]] ([[User talk:Seebert|talk]]) 14:51, 16 November 2015 (UTC)
:That would be 20*10^4 ohm = 240.000 ohm if I get it right? --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 15:13, 16 November 2015 (UTC)
::Red black yellow would be 200000 ohms, or 200kΩ (200 kilohms). Red-black is 20, and yellow is basically adding 4 zeroes to that. [[User:SuperSupermario24|Just some random derp]] 17:56, 16 November 2015 (UTC)
:::Ups, I put in the 4 from the comic, 20*10^4 ohm = 200.000 (not 240.000 as I wrote at first). Thanks for correcting ;-) --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 19:48, 16 November 2015 (UTC)
:As far as I can see, it's <code>black yellow red yellow</code>, repeated, and red does not touch black... {{User:Grep/signature|20:57, 16 November 2015}}

Do they still use color bands? Do they still teach them to technicians? Should parts of this explanation be rewritten in the past tense mentioning that Randal is getting old? I though the bands were relegated to the dead languages section, right next to linear B, once surface mounted components came along. I certainly haven't used them since around 1990, and would not expect my younger technicians to understand them.
--[[Special:Contributions/198.41.235.101|198.41.235.101]] 19:58, 16 November 2015 (UTC)
:I garuntee that they still do.--[[Special:Contributions/199.27.133.47|199.27.133.47]] 23:21, 16 November 2015 (UTC)
:Being one who is actively learning electronics I can say firsthand that they still do teach color bands, and almost all the resistors we use in class are color banded. [[User:SuperSupermario24|Just some random derp]] 23:27, 16 November 2015 (UTC)
:That's just the thing, though; surface mount components aren't used everywhere. Hobbyists and classroom environments still use through-hole resistors and DIP TTL ICs and the like because they're easier to breadboard and reuse, and therefore cheaper. SMT, CMOS, and other things have advantages for most commercial applications but not for everything else.[[Special:Contributions/108.162.221.36|108.162.221.36]] 05:07, 17 November 2015 (UTC)

I fucking lost it when I read this. Easily one of the funniest xkcds in my opinion haha [[User:International Space Station|International Space Station]] ([[User talk:International Space Station|talk]]) 12:32, 17 November 2015 (UTC)

Talk:1604: Snakes

2015-11-17T13:46:15Z

SquaredRoot:

I calculated that some of my local wildlife is comprised of 103 Ω snakes. --[[User:SquaredRoot|SquaredRoot]] ([[User talk:SquaredRoot|talk]]) 13:46, 17 November 2015 (UTC) [[User:SquaredRoot|SquaredRoot]] 01:37 17 November 2015 (UTC)

i don't know how to add the omega sign for the units of the resistor in the transcript. i'll leave that to someone more skilled than myself [[User:Beardmcbeardson|Beardmcbeardson]] ([[User talk:Beardmcbeardson|talk]]) 05:26, 16 November 2015 (UTC)

Just copy-and-paste! -N00b {{unsigned ip|108.162.214.77}}

Or find the 'omega' symbol in Windows Character Map. [[User:RAGBRAIvet|RAGBRAIvet]] ([[User talk:RAGBRAIvet|talk]]) 08:37, 16 November 2015 (UTC)

To be exact, a 24Ω resistor would be red, yellow, black; 240Ω would be red, yellow, brown, and so on, along a well-defined sequence. Red, yellow on its own would be missing the final "scaling" colour. [[User:Gearoid|Gearóid]] ([[User talk:Gearoid|talk]]) 08:54, 16 November 2015 (UTC)
:We don't need the scaling colour here, the snake is scaly enough as is. [[User:Matega|Matega]] ([[User talk:Matega|talk]]) 18:58, 16 November 2015 (UTC)

According to https://en.wikipedia.org/wiki/Electronic_color_code， a "black red black red black" resistor shoud be 2kΩ, not 24Ω ... -- Oicebot [[Special:Contributions/162.158.252.119|162.158.252.119]] 09:30, 16 November 2015 (UTC)

The fourth band on a resister is usually the multiplier (the value gets multiplied by 10 to a power according to the colour); it's the fifth that indicates tolerance [[User:sbutler87|sbutler87]]
:The resisteors that I have at hand are coloured the way I remember, Three bands of 'spectrum' colours (including black at zero, brown for 1, leading through the spectrum red to violet until grey at 8 and white at 9), the first two are literal, the third the power of magnitude to adjust up, and a fourth band (metalic silver/gold, to aid identification of the direction to read) as tolerance.
:I know there's variations, and zero ohm (or effectively so) links are a single black band, but that's all I've ever needed to know, in my time. (When I don't put something across mulimeter probes, just to make sure...) [[Special:Contributions/162.158.152.221|162.158.152.221]] 11:57, 16 November 2015 (UTC)
::The last band is tolerance, and there can be as many bands before that as the manufacturer needs. It's always the last band, no matter how many come before. [[User:Mikemk|Mikemk]] ([[User talk:Mikemk|talk]]) 18:18, 16 November 2015 (UTC)

FWIW: raw image: [[File:snake-pixelated.png]] and with added math: [[File:snake-interpolated.png]]. - [[User:Frankie|Frankie]] ([[User talk:Frankie|talk]]) 12:28, 16 November 2015 (UTC)

Does this mean a 200ohm snake is safe? (Red black yellow) [[User:Seebert|Seebert]] ([[User talk:Seebert|talk]]) 14:51, 16 November 2015 (UTC)
:That would be 20*10^4 ohm = 240.000 ohm if I get it right? --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 15:13, 16 November 2015 (UTC)
::Red black yellow would be 200000 ohms, or 200kΩ (200 kilohms). Red-black is 20, and yellow is basically adding 4 zeroes to that. [[User:SuperSupermario24|Just some random derp]] 17:56, 16 November 2015 (UTC)
:::Ups, I put in the 4 from the comic, 20*10^4 ohm = 200.000 (not 240.000 as I wrote at first). Thanks for correcting ;-) --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 19:48, 16 November 2015 (UTC)
:As far as I can see, it's <code>black yellow red yellow</code>, repeated, and red does not touch black... {{User:Grep/signature|20:57, 16 November 2015}}

Do they still use color bands? Do they still teach them to technicians? Should parts of this explanation be rewritten in the past tense mentioning that Randal is getting old? I though the bands were relegated to the dead languages section, right next to linear B, once surface mounted components came along. I certainly haven't used them since around 1990, and would not expect my younger technicians to understand them.
--[[Special:Contributions/198.41.235.101|198.41.235.101]] 19:58, 16 November 2015 (UTC)
:I garuntee that they still do.--[[Special:Contributions/199.27.133.47|199.27.133.47]] 23:21, 16 November 2015 (UTC)
:Being one who is actively learning electronics I can say firsthand that they still do teach color bands, and almost all the resistors we use in class are color banded. [[User:SuperSupermario24|Just some random derp]] 23:27, 16 November 2015 (UTC)
:That's just the thing, though; surface mount components aren't used everywhere. Hobbyists and classroom environments still use through-hole resistors and DIP TTL ICs and the like because they're easier to breadboard and reuse, and therefore cheaper. SMT, CMOS, and other things have advantages for most commercial applications but not for everything else.[[Special:Contributions/108.162.221.36|108.162.221.36]] 05:07, 17 November 2015 (UTC)

I fucking lost it when I read this. Easily one of the funniest xkcds in my opinion haha [[User:International Space Station|International Space Station]] ([[User talk:International Space Station|talk]]) 12:32, 17 November 2015 (UTC)