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0730: "Circuit Diagram"

Posted: Wed Apr 21, 2010 3:59 am UTC
by hthall
Image
http://xkcd.com/730/

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.

I'm NOT going to analyze this . . . must resist . . .

(The title-text gives away what he's doing, here.)

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:00 am UTC
by SocialSceneRepairman
...I think this one deserves my first "meh."

Just a bunch of half-assed "I've taken circuit design" in-jokes illogically strung together.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:01 am UTC
by jspenguin
Anyone who laughs at the 666 timer is a nerd.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:01 am UTC
by helo darqness
sometimes xkcd lowers my self-esteem, as comics like this are so esoteric, i feel completely out of the loop and uneducated.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:02 am UTC
by Doodle77
The answer is that the circuit bursts into flames because there's a 50V source with both sides connected to ground.

EDIT: And some AC sources with the ends hooked together.

Anyone who gets the arena joke is definitely a nerd.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:03 am UTC
by kobayashimaru3
Most of the diagram is quite bizarre but I definitely lol'd at the title-text.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:04 am UTC
by StClair
I remember just enough about schematics from my Scouting/Radio Shack days to be giggling all through this.
Great alt line, too.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:06 am UTC
by Steve the Pocket
helo darqness wrote:sometimes xkcd lowers my self-esteem, as comics like this are so esoteric, i feel completely out of the loop and uneducated.

It's not supposed to mean anything; it's just a fake circuit design made out of nonsense.

Basically it's the electrical engineering equivalent of this little beauty.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:07 am UTC
by hthall
Doodle77 wrote:The answer is that the circuit bursts into flames because there's a 50V source with both sides connected to ground.


Yes, but not in series with the magic smoke, so it's safe. (Also notice the "if you're a wimp" challenge.)

Doodle77 wrote:Anyone who gets the arena joke is definitely a nerd.


Can't we get beyond Thunderdome?

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:08 am UTC
by pck
I still got distracted that the blender was neither a Vitamix nor a Blendtec and also had no handle (how annoying to try and use one that way).

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:08 am UTC
by kobayashimaru3
helo darqness wrote:sometimes xkcd lowers my self-esteem, as comics like this are so esoteric, i feel completely out of the loop and uneducated.

When that happens to me I feel the need to Google and Wikipedia enough information until I understand the jokes. I like it because I find myself getting smarter as a result. It may be hard with this one since pictures are hard to Google.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:08 am UTC
by phira
Obviously, this circuit would never work without I-95 South eventually turning into 93 North.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:09 am UTC
by calico
Please don't over-analyze the hilarious out of this. This goes in my top ten for sure.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:09 am UTC
by HighSpeedFallingObjects
Ah, but does it have the kitchen sink? ;P

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:10 am UTC
by leftsquarebracket
jspenguin wrote:Anyone who laughs at the 666 timer is a nerd.

Then it's official!

Doodle77 wrote:The answer is that the circuit bursts into flames because there's a 50V source with both sides connected to ground.

And a 240 VAC source connected to itself and the ground-side of the 50 VDC supply and the... I'll stop.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:10 am UTC
by Omegaton
Steve the Pocket wrote:
helo darqness wrote:sometimes xkcd lowers my self-esteem, as comics like this are so esoteric, i feel completely out of the loop and uneducated.

It's not supposed to mean anything; it's just a fake circuit design made out of nonsense.

Basically it's the electrical engineering equivalent of this little beauty.

Clearly I know more about music than circuit diagrams because I lol'd at this link.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:10 am UTC
by Tirian
Where's the lion?

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:11 am UTC
by stsguitar23
I'm glad randal puts little things in to make the non-nerds laugh.
"touch toungue here" hahaha

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:11 am UTC
by HighSpeedFallingObjects
Doodle77 wrote:Anyone who gets the arena joke is definitely a nerd.


Someone fill me in.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:12 am UTC
by firestar27
Doodle77 wrote:The answer is that the circuit bursts into flames because there's a 50V source with both sides connected to ground.

EDIT: And some AC sources with the ends hooked together.

Anyone who gets the arena joke is definitely a nerd.


My friend says "false there is a wire going to the sun, its not a closed curcuit, so it does nothing"

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:13 am UTC
by Nintendon't
Steve the Pocket wrote:
helo darqness wrote:sometimes xkcd lowers my self-esteem, as comics like this are so esoteric, i feel completely out of the loop and uneducated.

It's not supposed to mean anything; it's just a fake circuit design made out of nonsense.

Basically it's the electrical engineering equivalent of this little beauty.



Damn, just nerd sniped me. Music style.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:15 am UTC
by -.Mateo.-
HighSpeedFallingObjects wrote:
Doodle77 wrote:Anyone who gets the arena joke is definitely a nerd.


Someone fill me in.


Tron. Or at least that's what I got.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:16 am UTC
by cheezitman2001
I'm just disappointed that there no were no references to a not gate as the ship from Asteroids.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:16 am UTC
by JoshuaZ
Does anyone know what the symbol with the circle and the squiggly line represents? That's not an aspect of a circuit diagram that I recognize and I can't find anything that looks like that in a quick Google search. There are at least two of them in the diagram, one next to the "omit this if you're a wimp" note and another next to the Pi ohm resistor.

Also, while we're on the subject cool random fact: that I've heard by word of mouth but never seen in a reliable source. Although the terminology goes diode, triode, tetrode, pentode, originally diodes were not called that because they had two wires going in but rather from "dia" and "ode" from the Greek for "through path." (I suspect this is true because the diode term was used long before there were triodes).

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:17 am UTC
by Tychomonger
I wonder if this circuit can really put 1.21 gigawatts through that flux capacitor there.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:22 am UTC
by gmrple
JoshuaZ wrote:Does anyone know what the symbol with the circle and the squiggly line represents? That's not an aspect of a circuit diagram that I recognize and I can't find anything that looks like that in a quick Google search. There are at least two of them in the diagram, one next to the "omit this if you're a wimp" note and another next to the Pi ohm resistor.

Also, while we're on the subject cool random fact: that I've heard by word of mouth but never seen in a reliable source. Although the terminology goes diode, triode, tetrode, pentode, originally diodes were not called that because they had two wires going in but rather from "dia" and "ode" from the Greek for "through path." (I suspect this is true because the diode term was used long before there were triodes).



The squiggly line thing is an AC source

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:23 am UTC
by Scarlet
AHAHAHA! The creation of this comic doesn't have anything to do with the fact it was 420 does it? ^_~ I absolutely love it!

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:23 am UTC
by memcginn
I've never taken Physics E&M, but I do know some of the symbols that pop up in the diagrams.

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

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:24 am UTC
by Linux0s
Actually the magic smoke looks more like raw bud.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:25 am UTC
by WontonSoup
Steve the Pocket wrote:
helo darqness wrote:sometimes xkcd lowers my self-esteem, as comics like this are so esoteric, i feel completely out of the loop and uneducated.

It's not supposed to mean anything; it's just a fake circuit design made out of nonsense.

Basically it's the electrical engineering equivalent of this little beauty.


Yeah, that's EXACTLY what I thought too. What an amazing comic.

P.S. Release the penguins!

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:26 am UTC
by hthall
HighSpeedFallingObjects wrote:
Doodle77 wrote:Anyone who gets the arena joke is definitely a nerd.


Someone fill me in.


Notice the directions of the three surrounding diodes, then watch http://www.youtube.com/watch?v=pmRAiUPdRjk.

JoshuaZ wrote:Does anyone know what the symbol with the circle and the squiggly line represents?


http://www.google.com/images?q=ac+source+symbol

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:26 am UTC
by MrCode
This has to be the most random comic I've seen yet...

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:

The thing I most identified with here was the "Arduino, for blog cred" bit. :mrgreen:

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:27 am UTC
by elendia
The lack of a particular observation galled me so much that I created an account to post it.

Anyone see the "1 mile" scale bar at the upper left corner? This thing is HUGE.... :shock:

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:28 am UTC
by Quicksilver
Why is there a North, Five, East and West sign? Where's south? Why is there a balloon? So many questions.

I admit I liked the moral rectifier.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:28 am UTC
by sourm├Člk
memcginn wrote:I've never taken Physics E&M, but I do know some of the symbols that pop up in the diagrams.

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



That's one of the only ones I got (as well as the flux capacitor :P )

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:29 am UTC
by scarletmanuka
-.Mateo.- wrote:
HighSpeedFallingObjects wrote:
Doodle77 wrote:Anyone who gets the arena joke is definitely a nerd.

Someone fill me in.

Tron. Or at least that's what I got.

No. It may help to note that there are two diodes allowing current to go into the arena, but only one allowing it to leave.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:30 am UTC
by 74DartSport
I've let the "Magic Smoke" out of too many items.
And it's tough to get it back in.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:31 am UTC
by gmrple
Anyone figured out the equivalent resistance of the crazy mess of resistors? should be pretty simple after a couple Delta-Y transforms. I'll probably work it out on the train tomorrow.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:31 am UTC
by Quicksilver
scarletmanuka wrote:
-.Mateo.- wrote:
HighSpeedFallingObjects wrote:
Doodle77 wrote:Anyone who gets the arena joke is definitely a nerd.

Someone fill me in.

Tron. Or at least that's what I got.

No. It may help to note that there are two diodes allowing current to go into the arena, but only one allowing it to leave.
I thought it was a reference to the coliseum.
I also noticed this whole thing looks like it's designed to power a light bulb. Randall needs to play some gizmo's and gadgets, because this circuit isn't a bright idea.

Re: "Circuit Diagram" Discussion

Posted: Wed Apr 21, 2010 4:32 am UTC
by Sleeping143
I can't wait until I have some time to find the equivalent resistance of that resistor mess...