0730: "Circuit Diagram"

This forum is for the individual discussion thread that goes with each new comic.

Moderators: Moderators General, Prelates, Magistrates

User avatar
leftsquarebracket
Posts: 9
Joined: Fri Apr 09, 2010 2:58 am UTC

Re: "Circuit Diagram" Discussion

Postby leftsquarebracket » Wed Apr 21, 2010 4:33 am UTC

Tychomonger wrote:I wonder if this circuit can really put 1.21 gigawatts through that flux capacitor there.


I'm not sure if it matters, since the flux capacitor is directly hooked up to the 55 MPH speed limit.

MasterEvilAce
Posts: 1
Joined: Wed Apr 21, 2010 4:29 am UTC

Re: "Circuit Diagram" Discussion

Postby MasterEvilAce » Wed Apr 21, 2010 4:34 am UTC

Guys, help me out here. I've almost got the circuit together but Mr. Munroe left out a critical piece of information.
I need to know the exact species of the rodent pictured. I can't tell if it's a squirrel or a rat with TWO wires going into it.
Please, Mr. Munroe. Clarification! You're hindering scientific progress, here!

See attached.
Attachments
Untitled-2.png

User avatar
Quicksilver
Posts: 436
Joined: Wed Apr 29, 2009 6:21 am UTC

Re: "Circuit Diagram" Discussion

Postby Quicksilver » Wed Apr 21, 2010 4:35 am UTC

that resistor mess sounds like Chaitin's constant.

User avatar
tehol
Posts: 38
Joined: Mon Mar 23, 2009 11:25 pm UTC

Re: "Circuit Diagram" Discussion

Postby tehol » Wed Apr 21, 2010 4:37 am UTC

HighSpeedFallingObjects wrote:Ah, but does it have the kitchen sink? ;P


this made the comic for me, :)

Thanks,
ACF Forum home--Lether lol, CN FTW Goodbye, O fiendish mind-thief Seems I can't escape
- tehol OR tehol this link kills spam?

Mavrisa
Posts: 340
Joined: Mon Dec 22, 2008 8:49 pm UTC
Location: Ontario

Re: "Circuit Diagram" Discussion

Postby Mavrisa » Wed Apr 21, 2010 4:38 am UTC

MrCode wrote:At first I was thinking it might be like a circuit-diagram representation of Randall's personality/mind or something, but then I scrolled down and realized that it's waaaaay too random for that! :roll::

Well really, Randall thought it up... so that's not entirely true...
"I think nature's imagination is so much greater than man's, she's never gonna let us relax."

dwasifar
Posts: 15
Joined: Wed Apr 21, 2010 4:29 am UTC

Re: "Circuit Diagram" Discussion

Postby dwasifar » Wed Apr 21, 2010 4:39 am UTC

I used to collect and restore old radios, and I have quite a few Sams Photofacts schematics, copied from the library, in a folder in case I ever have to work on those particular radios again.

Back in the day, I remember looking at one of them and seeing a symbol I didn't recognize; it was two intertwined wavy lines, with a callout and pointer saying "Gimmick." I compared it to the actual chassis, and in that spot in the circuit was a pair of insulated wires twisted together for about half an inch. I guess they needed just a little capacitance with no particular need for precision, and it was cheaper to twist wires together than use an actual capacitor.

johonn
Posts: 7
Joined: Wed Dec 03, 2008 5:47 am UTC

Re: "Circuit Diagram" Discussion

Postby johonn » Wed Apr 21, 2010 4:41 am UTC

Doesn't anyone else want a POSTER of this??? Please?!?!?
Image

dwasifar
Posts: 15
Joined: Wed Apr 21, 2010 4:29 am UTC

Re: "Circuit Diagram" Discussion

Postby dwasifar » Wed Apr 21, 2010 4:43 am UTC

johonn wrote:Doesn't anyone else want a POSTER of this??? Please?!?!?

The poster of this would be Randall himself, and I don't think he's for sale.

pyromuffin
Posts: 11
Joined: Mon Dec 10, 2007 8:55 am UTC

Re: "Circuit Diagram" Discussion

Postby pyromuffin » Wed Apr 21, 2010 4:44 am UTC

Randall has actually just copied and pasted the schematic for the LM741.

User avatar
Steve the Pocket
Posts: 597
Joined: Mon Apr 23, 2007 4:02 am UTC
Location: Going downtuuu in a Luleelurah!

Re: "Circuit Diagram" Discussion

Postby Steve the Pocket » Wed Apr 21, 2010 4:46 am UTC

Scarlet wrote:AHAHAHA! The creation of this comic doesn't have anything to do with the fact it was 420 does it?

Yes, yes, because people certainly aren't capable of coming up with anything bizarre or random without drugs. </sarcasm>
cephalopod9 wrote:Only on Xkcd can you start a topic involving Hitler and people spend the better part of half a dozen pages arguing about the quality of Operating Systems.

Baige.

warc0w
Posts: 1
Joined: Mon Apr 13, 2009 3:12 am UTC

Re: "Circuit Diagram" Discussion

Postby warc0w » Wed Apr 21, 2010 4:48 am UTC

i would love this on a shit

dwasifar
Posts: 15
Joined: Wed Apr 21, 2010 4:29 am UTC

Re: "Circuit Diagram" Discussion

Postby dwasifar » Wed Apr 21, 2010 4:50 am UTC

warc0w wrote:i would love this on a shit

That's gotta be the strangest geek fetish I've ever heard of.

User avatar
-.Mateo.-
Posts: 264
Joined: Sun Jun 28, 2009 12:01 am UTC
Location: Location Location

Re: "Circuit Diagram" Discussion

Postby -.Mateo.- » Wed Apr 21, 2010 4:51 am UTC

dwasifar wrote:
johonn wrote:Doesn't anyone else want a POSTER of this??? Please?!?!?

The poster of this would be Randall himself, and I don't think he's for sale.


Then we take him by force
Magus wrote:If history is to change, let it change. If the world is to be destroyed, so be it. If my fate is to die, I must simply laugh.

Just as you touch the energy of every life form you meet, so, too, will will their energy strengthen you.

acheron
Posts: 5
Joined: Wed Oct 01, 2008 4:04 am UTC

Re: "Circuit Diagram" Discussion

Postby acheron » Wed Apr 21, 2010 4:52 am UTC

memcginn wrote:That may be why my favorite part of the diagram is "Not a resistor; wire just does this."


I laughed at that too.

Also I'm now picturing hot topless electrical engineer chicks wiring up a circuit. oh yeah.

iamevn
Posts: 98
Joined: Thu Oct 30, 2008 3:59 am UTC

Re: "Circuit Diagram" Discussion

Postby iamevn » Wed Apr 21, 2010 4:53 am UTC

pyromuffin wrote:Randall has actually just copied and pasted the schematic for the LM741.


[listens for the sound of nerds googling]

what? They look nothing alike
Last edited by iamevn on Wed Apr 21, 2010 4:56 am UTC, edited 1 time in total.

nathanst
Posts: 2
Joined: Wed Apr 21, 2010 4:37 am UTC

Re: "Circuit Diagram" Discussion

Postby nathanst » Wed Apr 21, 2010 4:54 am UTC

"Brown, Blue, Orange"
1,6,x1000, (no tolerance band)
or
(no initial band),1,X1000000,+/-3%

is there a joke here?

MrCode
Posts: 27
Joined: Fri Mar 05, 2010 9:05 am UTC

Re: "Circuit Diagram" Discussion

Postby MrCode » Wed Apr 21, 2010 4:56 am UTC

nathanst wrote:"Brown, Blue, Orange"
1,6,x1000, (no tolerance band)
or
(no initial band),1,X1000000,+/-3%

is there a joke here?



I believe that would be a reference to this comic. :)

User avatar
AvoidCXT
Posts: 2
Joined: Mon Jun 08, 2009 12:53 am UTC
Location: Floridia

Re: "Circuit Diagram" Discussion

Postby AvoidCXT » Wed Apr 21, 2010 4:59 am UTC

A pair of cross-coupled NOR gates is a latch, not a flip flop. However it shouldn't matter much as long as the yarn is edge-triggered.

Even so, great comic. There needs to be more EE in xkcd.

nathanst
Posts: 2
Joined: Wed Apr 21, 2010 4:37 am UTC

Re: "Circuit Diagram" Discussion

Postby nathanst » Wed Apr 21, 2010 5:00 am UTC

MrCode wrote:
nathanst wrote:"Brown, Blue, Orange"
1,6,x1000, (no tolerance band)
or
(no initial band),1,X1000000,+/-3%

is there a joke here?



I believe that would be a reference to this comic. :)


163?

I don't see the connection but thx.

Naiin
Posts: 6
Joined: Wed Apr 21, 2010 5:05 am UTC

Re: "Circuit Diagram" Discussion

Postby Naiin » Wed Apr 21, 2010 5:11 am UTC

First look through I said to myself: "okay, now where's the flux capacitor?" But of course, the mandatory reference was added.

Anyone else notice the random methyl group added? That gave me a chuckle.

I'm not a computer nerd in the slightest, but I liked this one.

User avatar
pyroman
Posts: 346
Joined: Sun Feb 10, 2008 5:35 am UTC
Location: University at Buffalo
Contact:

Re: "Circuit Diagram" Discussion

Postby pyroman » Wed Apr 21, 2010 5:16 am UTC

I was working on finishing up a lab write up for one my EE labs when I checked this. Its kind of scary how much the breadboard sitting on my desk seems to resemble this comic.... = /
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety. - Benjamin Franklin

Aeronaut
Posts: 8
Joined: Sun Nov 16, 2008 5:22 am UTC

Re: "Circuit Diagram" Discussion

Postby Aeronaut » Wed Apr 21, 2010 5:19 am UTC

To someone who only narrowly passed (and still does not understand or care for) Circuits, this is nightmare fuel.

User avatar
Magnanimous
Madmanananimous
Posts: 3467
Joined: Wed Feb 17, 2010 7:11 pm UTC
Location: Land of Hipsters and Rain (LOHAR)

Re: "Circuit Diagram" Discussion

Postby Magnanimous » Wed Apr 21, 2010 5:21 am UTC

Best comic in a long time. Definitely.

I was expecting a reference to Euler's Bridge Problem. XD Or maybe two wires hooked into a potato?

User avatar
JulienC
Posts: 5
Joined: Wed Mar 28, 2007 5:30 am UTC

Re: "Circuit Diagram" Discussion

Postby JulienC » Wed Apr 21, 2010 5:25 am UTC

jspenguin wrote:Anyone who laughs at the 666 timer is a nerd.


The number of the bistable.

compro01
Posts: 27
Joined: Wed Nov 26, 2008 4:45 pm UTC

Re: "Circuit Diagram" Discussion

Postby compro01 » Wed Apr 21, 2010 5:42 am UTC

dwasifar wrote:Back in the day, I remember looking at one of them and seeing a symbol I didn't recognize; it was two intertwined wavy lines, with a callout and pointer saying "Gimmick." I compared it to the actual chassis, and in that spot in the circuit was a pair of insulated wires twisted together for about half an inch. I guess they needed just a little capacitance with no particular need for precision, and it was cheaper to twist wires together than use an actual capacitor.


i've used that trick to get small capacitances to force stubborn crystal oscillators to function properly. 22 gauge solid copper wire gives about 3pf/inch IIRC.

dwasifar
Posts: 15
Joined: Wed Apr 21, 2010 4:29 am UTC

Re: "Circuit Diagram" Discussion

Postby dwasifar » Wed Apr 21, 2010 5:46 am UTC

jspenguin wrote:Anyone who laughs at the 666 timer is a nerd.


Well, it's one better, isn't it? It's not fives. You see, most blokes, you know, will be using a 555 timer. You're on fives here, all the way up, all the way up, all the way up, you're on fives on your chip. Where can you go from there? Where? Nowhere. Exactly. What we do is, if we need that extra push over the cliff, you know what we do? Put it up to sixes. Exactly. One better.

User avatar
cephalopod9
Posts: 1904
Joined: Sat Dec 02, 2006 7:23 am UTC

Re: "Circuit Diagram" Discussion

Postby cephalopod9 » Wed Apr 21, 2010 5:50 am UTC

dwasifar wrote:
jspenguin wrote:Anyone who laughs at the 666 timer is a nerd.


Well, it's one better, isn't it? It's not fives. You see, most blokes, you know, will be using a 555 timer. You're on fives here, all the way up, all the way up, all the way up, you're on fives on your chip. Where can you go from there? Where? Nowhere. Exactly. What we do is, if we need that extra push over the cliff, you know what we do? Put it up to sixes. Exactly. One better.

Why don't you just make 5 longer? make 5 the top number, and make it longer
Image

dwasifar
Posts: 15
Joined: Wed Apr 21, 2010 4:29 am UTC

Re: "Circuit Diagram" Discussion

Postby dwasifar » Wed Apr 21, 2010 5:53 am UTC

cephalopod9 wrote:
dwasifar wrote:
jspenguin wrote:Anyone who laughs at the 666 timer is a nerd.


Well, it's one better, isn't it? It's not fives. You see, most blokes, you know, will be using a 555 timer. You're on fives here, all the way up, all the way up, all the way up, you're on fives on your chip. Where can you go from there? Where? Nowhere. Exactly. What we do is, if we need that extra push over the cliff, you know what we do? Put it up to sixes. Exactly. One better.

Why don't you just make 5 longer? make 5 the top number, and make it longer


... These go to six.

User avatar
beard0
Posts: 21
Joined: Wed Jan 17, 2007 5:17 am UTC
Location: Ottawa
Contact:

Re: "Circuit Diagram" Discussion

Postby beard0 » Wed Apr 21, 2010 5:55 am UTC

johonn wrote:Doesn't anyone else want a POSTER of this??? Please?!?!?

That is exactly why I came over to the discussion thread. I would love to buy a poster of this. I'll add my own "Please?"
Who has been making grilled cheese sandwiches with the defibrillator paddles?
-Delores Herbig

User avatar
CorruptUser
Posts: 8429
Joined: Fri Nov 06, 2009 10:12 pm UTC

Re: "Circuit Diagram" Discussion

Postby CorruptUser » Wed Apr 21, 2010 5:55 am UTC

Damnit Randall, the resistor mass is NONPLANAR! ARGH!

Indignator
Posts: 1
Joined: Wed Apr 21, 2010 5:46 am UTC

Re: "Circuit Diagram" Discussion

Postby Indignator » Wed Apr 21, 2010 5:57 am UTC

Wow, there is actually a Wikipedia article about the magic smoke:

http://en.wikipedia.org/wiki/Magic_smoke

I remember the first time I heard the magic smoke joke; I laughed for hours. I still get a smirk every time I hear it.

User avatar
mochafairy
Posts: 1098
Joined: Tue Mar 25, 2008 11:27 pm UTC
Location: Ohio

Re: "Circuit Diagram" Discussion

Postby mochafairy » Wed Apr 21, 2010 5:57 am UTC

Randall,

I just wanted to let you know that you made me laugh with this one. The mess of wires looks like something you copied from one of my EE 201 exams (that is the actual course number for the class at Purdue, which made me laugh harder).

Of course there's everything else that makes me laugh about this comic, but this is definitely going up in the HKN lounge tomorrow.
"YES. DO IT WITH CONFIDENCE" ~fortune cookie

User avatar
CorruptUser
Posts: 8429
Joined: Fri Nov 06, 2009 10:12 pm UTC

Re: "Circuit Diagram" Discussion

Postby CorruptUser » Wed Apr 21, 2010 5:59 am UTC

Anyone know what number "brown blue orange" is? Last time Randall had a joke about that, it was the dial-a-song phone number.

oldguy
Posts: 1
Joined: Wed Apr 21, 2010 5:47 am UTC

Re: "Circuit Diagram" Discussion

Postby oldguy » Wed Apr 21, 2010 6:00 am UTC

Not to put too fine a point on it but two NOR gates, wired as drawn, are in fact an RS flip-flop. Also referred to as a latch. The substituting an actual sandal line is a scream!

Istaro
Posts: 100
Joined: Mon Jan 05, 2009 6:00 pm UTC

Re: "Circuit Diagram" Discussion

Postby Istaro » Wed Apr 21, 2010 6:07 am UTC

Also loved the flip-flop joke (or rather, I seem to feel the pointless need to let the internets know that I got it), but "not a resistor, wire just does this" probably got the loudest laugh out of me. Along with the length scale not matching up with the 3/8" measurement, or even with itself for that matter. Well done. This is the kind of comic that got me hooked on XKCD in the first place, like Height, Depth, and Map of the Internet. In fact I might almost say that the main reason I subscribe is in anticipation of these.

skifter
Posts: 1
Joined: Wed Apr 21, 2010 6:06 am UTC

Re: "Circuit Diagram" Discussion

Postby skifter » Wed Apr 21, 2010 6:09 am UTC

More chuckles per view than any xkcd I've seen in a long time (Maybe the ZeroDay booklet...). Thanks yet again Randall!

ELProphet
Posts: 11
Joined: Mon Jun 23, 2008 4:26 am UTC

Re: "Circuit Diagram" Discussion

Postby ELProphet » Wed Apr 21, 2010 6:09 am UTC

No Feynman Diagrams? A Theoretical Physicist is a sad panda tonight.

User avatar
Max2009
Posts: 160
Joined: Mon Mar 09, 2009 2:20 pm UTC
Location: Where?
Contact:

Re: "Circuit Diagram" Discussion

Postby Max2009 » Wed Apr 21, 2010 6:10 am UTC

I'm not sure whether it's good or bad that I didn't get all of the jokes in this one. But I did get the vast majority.
I'm not an EE, just a little geeky. I particularly like the weird units given to the elements in the diagram. (an 11 kg inductor, pi resistor, 8 mm resistor...)
But I'm not sure I got the holding pen and scarab beetles...

For those still trying to work it out, the arena is a reference to one of the Mad Max movies (I forgot which).
Cogito ergo surf - I think therefore I network

Registered Linux user #481826 Get Counted! http://counter.li.org

Image

User avatar
whubris
Posts: 7
Joined: Thu Jan 21, 2010 1:16 am UTC

Re: "Circuit Diagram" Discussion

Postby whubris » Wed Apr 21, 2010 6:11 am UTC

dwasifar wrote:Back in the day, I remember looking at one of them and seeing a symbol I didn't recognize; it was two intertwined wavy lines, with a callout and pointer saying "Gimmick." I compared it to the actual chassis, and in that spot in the circuit was a pair of insulated wires twisted together for about half an inch. I guess they needed just a little capacitance with no particular need for precision, and it was cheaper to twist wires together than use an actual capacitor.


I'd love to see that. Please post a scan if you can.
.............................................
ddrcoder wrote:So, if you puree'd the entire population of the USA (not just the fatties) and evenly distributed it across the whole grand canyon, the water level would rise 2 feet.

pgn674
Posts: 38
Joined: Mon Mar 26, 2007 8:07 am UTC

Re: "Circuit Diagram" Discussion

Postby pgn674 » Wed Apr 21, 2010 6:12 am UTC

hthall wrote:Title-text: I just caught myself idly trying to work out what that resistor mass would actually be, and realized I had self-nerd-sniped.
Can't believe no one linked to the referenced comic already: xkcd: Nerd Sniping


Return to “Individual XKCD Comic Threads”

Who is online

Users browsing this forum: Google Feedfetcher, Heimhenge, RAGBRAIvet, Soupspoon and 11 guests