Thread: Questions we could google the answers for, but we'd prefer to see what other CM'ers think first.

  1. #226
    Grumpy Old Man
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    Quote Originally Posted by Rodrigo Istalindir View Post
    Was it over when the Germans bombed Pearl Harbor?
    Only for the Samoans.
    fuck you guys.

 

  • #227
    fuzzy! Lady of Pain's Avatar
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    Why do light bulbs light up? (Something my 4yr old daughter just asked me.)

  • #228
    Quote Originally Posted by Lady of Pain View Post
    Why do light bulbs light up? (Something my 4yr old daughter just asked me.)
    Through an electrical miracle brought to us through a Mr. Phil A. Ment.

    Alternatively, you could say a tiny snake is being stretched between two wires and set on fire...so leaving a light on when you leave the room is just torture.

    Magic.

    The goodness of pie is captured by light bulbs which glow with pleasure.

  • #229
    Why isn't physics simpler?

    Spoiler:


    Force = mass times acceleration

    Okay, the car that hits me has mass, but it's travelling at a steady speed, not accelerating. Force = 0 and I don't get hurt?

    In physics, acceleration doesn't only mean increasing speed, it can also mean changing direction.

    Um. Why?

    Acceleration is the change in velocity over an interval of time...

    Well, duh. Like going from 0 to 60 in 4.8 seconds: change in speed over time.

    No, change in velocity over time.

    You say velocity, I say to-MAH-to.

    Velocity isn't speed. It's speed in a given direction.

    Um. Okay, I sort of get that. Now, back to the car that hits me. It's not speeding up, and it's not changing direction, so again, acceleration should be zero and I don't get hurt.

    Acceleration can also mean a decrease in velocity.

    But that's DEceleration! You're making this up!

    Fiat justitia ruat coelum.

  • #230
    Quote Originally Posted by Lady of Pain View Post
    Why do light bulbs light up? (Something my 4yr old daughter just asked me.)
    Lies for Children Part I:
    The electricity running through the coiled wire causes the wire to get hotter.
    If it's hot enough, the wire begins to glow.

    If she wants more details:
    Lies for Children Part II:
    The wire is made up of very tiny things called "atoms". These consist of even smaller things. One part of these smaller things are "electrons". When there is an electric current running through the wire it means that there is something attracting the electrons on one side and something repelling them on the other side. So electrons move from one side to the other side. As they do so, they bump against the atoms. This causes movement, and when atoms are moving, this means heat. The bumping around means that light is emitted. If the electrons bump hard enough (are fast enough), the light becomes visible to us.

    If she wants more detail:
    Lies for Children Part III:
    Tell her she should look forward to when she finally gets to school and gets to listen to physical sciences. It will be awesome!
    Last edited by Mustrum_Ridcully; January 29th, 2010 at 10:09 PM.

  • #231
    fuzzy! Lady of Pain's Avatar
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    Quote Originally Posted by Riggs View Post
    Through an electrical miracle brought to us through a Mr. Phil A. Ment.

    Alternatively, you could say a tiny snake is being stretched between two wires and set on fire...so leaving a light on when you leave the room is just torture.

    Magic.

    The goodness of pie is captured by light bulbs which glow with pleasure.
    Funny you mention pie. She said everyone loves pie one day and my 8yr old said I don't like pie. It ruined her whole evening. Like some dream had been shattered.

    Quote Originally Posted by Mustrum_Ridcully View Post
    Lies for Children Part I:
    The electricity running through the coiled wire causes the wire to get hotter.
    If it's hot enough, the wire begins to glow.

    If she wants more details:
    Lies for Children Part II:
    The wire is made up of very tiny things called "atoms". These consist of even smaller things. One part of these smaller things are "electrons". When there is an electric current running through the wire it means that there is something attracting the electrons on one side and something repelling them on the other side. So electrons move from one side to the other side. As they do so, they bump against the atoms. This causes movement, and when atoms are moving, this means heat. The bumping around means that light is emitted. If the electrons bump hard enough (are fast enough), the light becomes visible to us.

    If she wants more detail:
    Lies for Children Part III:
    Tell her she should look forward to when she finally gets to school and gets to listen to physical sciences. It will be awesome!

    She wanted to go to kindergarten this year with her sister and was so sad when she couldn't go. She wants to go to school. As for your explanation, that will go right over her head. But thanks for taking the time to explain. I think I'll use Riggs explanation.

  • #232
    Quote Originally Posted by Lady of Pain View Post
    Funny you mention pie. She said everyone loves pie one day and my 8yr old said I don't like pie. It ruined her whole evening. Like some dream had been shattered.




    She wanted to go to kindergarten this year with her sister and was so sad when she couldn't go. She wants to go to school. As for your explanation, that will go right over her head. But thanks for taking the time to explain. I think I'll use Riggs explanation.
    I don't think the first is too much. The second certainly.

  • #233
    What sort of barbarians are you people who don't use compact fluorescent bulbs?!

    Do you hate Mother Earth? Just the light since you last posted has probably killed a couple of pandas!

    In short, good work!

    Which reminds me...

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  • #234
    The Pac-Man Theory of Electrons

    Electrons are Pac-Men.

    Spoiler:


    Pac-Men live in batteries, and they love to run through wires in circles. So there's always a big crowd at the exit of the battery of Pac-Men shoving to get out. If you connect a wire in a big circle to the exit and entrance of the battery, the crowd at the exit will push all the Pac-Men running through the wires.

    If you connect a light-bulb into the wire, it's like a big, heavy turnstile. The Pac-Men will still run through it, but they have to work to do it, and they get all hot and sweaty, and that's what makes the light bulb glow.

    Eventually, all the Pac-Men run through the big circle, and then there's no more crowd pushing at the exit to the battery - they're all too tired to run any more. That's when batteries stop working.

    Spoiler:
    Our Physics teacher Mr Russ taught us the Pac-Man Theory of Electrons when we were in 3rd Form - about 8th Grade, I think. Then in 4th Form, we had a different Physics teacher, who explained that Mr Russ had lied to us, and electrons aren't Pac-Men after all. Then in 6th Form, we had Mr Russ again, and he reiterated that electrons really are Pac-Men, and extended the Theory to explain Electromagnetism.

    My mother's a teacher, and had me teach some science classes for her 11-year-olds a few years later, and I used the PMToE to explain electricity, and it worked great.

    But she specialises in gifted pre-schoolers, and when she tried it on her 4-year-olds, it failed. Not because they couldn't handle the concepts... but because they didn't know who Pac-Man is.

    But that wasn't the scary part. The scary part was the first time she tried to use Pac-Man, and the parents of the 4-year-olds didn't know who Pac-Man is.


    -Hyp.

  • #235
    out the backdoor of GC Vikingcat's Avatar
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    Quote Originally Posted by Hypersmurf View Post
    The scary part was the first time she tried to use Pac-Man, and the parents of the 4-year-olds didn't know who Pac-Man is.
    I love the analogy, and I weep for our generation.

  • #236
    First Day On The Internet Calamari Face's Avatar
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    Quote Originally Posted by Hypersmurf View Post
    Our Physics teacher Mr Russ taught us the Pac-Man Theory of Electrons when we were in 3rd Form - about 8th Grade, I think. Then in 4th Form, we had a different Physics teacher, who explained that Mr Russ had lied to us, and electrons aren't Pac-Men after all. Then in 6th Form, we had Mr Russ again, and he reiterated that electrons really are Pac-Men, and extended the Theory to explain Electromagnetism.


    That's fucking awesome. On the downside, this process probably turned the dumber kids off of science forever.



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  • #237
    ... I know. madwabbit's Avatar
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    Quote Originally Posted by Rel View Post
    What sort of barbarians are you people who don't use compact fluorescent bulbs?!
    Because they suck, and fluorescent light drives you insane?

    [ame]http://www.youtube.com/watch?v=oGLKnAvzlg4[/ame]
    Omnes lagani pistrinae gelate male sapiunt.
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  • #238
    guyjin's Avatar
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    Quote Originally Posted by Calamari Face View Post
    On the downside, this process probably turned the dumber kids off of science forever.
    How is that a downside?

    Oh wait, I know. But I shouldn't say outside of the Senate.

  • #239
    Quote Originally Posted by Lady of Pain View Post
    Funny you mention pie. She said everyone loves pie one day and my 8yr old said I don't like pie. It ruined her whole evening. Like some dream had been shattered.




    She wanted to go to kindergarten this year with her sister and was so sad when she couldn't go. She wants to go to school. As for your explanation, that will go right over her head. But thanks for taking the time to explain. I think I'll use Riggs explanation.


    Oh Pie, is there any problem you can't solve? As if pleased with my reply, the magic of pie produced not one, but two pies in my fridge while I wasn't there. (My mother was watching the kids after school and put a pecan and cherry pie in the fridge).
    If only there was a mood label for: Pie Happy
    Last edited by Riggs; February 1st, 2010 at 06:55 PM. Reason: Thanks Guyjin--that works too

  • #240
    Lieutenant Dummy Stupid-Butt Ftumch's Avatar
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    Quote Originally Posted by Vikingcat View Post
    I love the analogy, and I weep for our generation.
    Why? Our generation knows who Pac-Man is.

    It's the damn kids these days who don't...weep for their generation.



    Quote Originally Posted by madwerebit View Post
    Because they suck, and fluorescent light drives you insane?
    As we speak, Obama's private army is on it's way to your house to revoke your liberal card.
    Last edited by Ftumch; February 1st, 2010 at 06:53 PM.
    ---In real life, vampires only sparkle when they're on fire.

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