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Comments:
<0> hondje: could you teach me how to short-curcuit a car?
<1> short circuit or hot wire?
<0> hats the difference?
<0> +w
<1> one starts the car, the other could potentially fry all of the electronics
<0> i want to drive a car where i don't have the key
<2> physics in life :)
<0> it's easy pick the car and sell it
<1> that one is hot wiring...
<0> could you teach me?
<1> nope, i **** at teaching/explaining anything, and i only know the theory, never done it in reality
<3> hello
<4> hello
<3> why is it that we can see the space shuttle fly over at night. isn't it too in the darkness?
<4> why can we see the moon at night?
<3> ahh ok, so you mean we can see the space shuttle only when it is night time here, but the shuttle is still in the light
<4> i'm guessing so
<4> i don't actually know
<5> you think you are at night since the shadow created by the earth is covering the city youare in but that shadow is not in space.. there would have to be an exception if the space statin p***es right under that shadow.
<4> but i don't believe there is enough luminescense from the earth to reflect of the shuttle
<3> you might be right cause is it seems like the latest you can see it is like 11pm
<3> no listing for like 3am
<3> yeah definitely it
<3> listing for 5:40 am
<3> nothing in the middle of hte night
<3> ok thanks
<6> I know nothing about hotwiring cars
<7> ...ok
<6> Manyfold asked.
<6> <0> hondje: could you teach me how to short-curcuit a car?
<1> you know nothing about it?
<1> even *I* know something about it...
<6> You reach under the dash, touch a couple wires, and then something magical happens
<8> sacarasc: lol
<1> mefistofeles: dont worry, ill let you stay on the 8th level
<8> heh
<8> they are all mine anyway
<1> nope, Mephistopheles only resides in the 8th layer
<1> and is ultimately overshadowed by Asmodeus
<8> well I dont really know...I just like the sound of the nick :P
<8> I tried to read Faust but got bored
<9> can afire burn if the ambient temperature is brought down to say..a few degrees above absolute zero?
<10> orbitz: no
<9> what happens if i'm burning something and i bring teh temperature down closer to absolute ero, does it just go out?
<10> orbitz: yes....
<9> i didnt' ask a yes or no question...
<10> the fire will go out.....
<9> why
<10> not enough kenetic energy between atoms to overcome repulsion
<9> how low does the temperature ahv eot go?
<10> orbitz: no clue
<9> lets say somethign burns at N degrees. do we ahv eto bring it significanlty below N degrees
<10> here...this might be helpfull http://en.wikipedia.org/wiki/Activation_energy\
<10> err http://en.wikipedia.org/wiki/Activation_energy
<10> so it depends what exactly your burning...
<10> the activation energy will be different for different reactions...
<10> if it gets too cold...you wont have enough energy to react at decent rate...
<10> although....if you had somthing burning.....its a self sustaining reaction....you would need to cool its ambient temperature to a point....such that the energy being radiated from the fire is greater than that being produced in the chemical reaction......so it wont be able to keep sustain itself at this point..
<10> complicated problem......as you lower the temperature the fire's reaction rate will decrease as well....changing its power output.......i imagine it would involve solving a differential equation of sorts
<10> but you would need to do some rather heavy approximation....dont know if it would even be valid..
<10> this is why we do experiments....
<10> AHHH!!
<10> get it off!
<11> morning !Jreggelt
<3> what is diff between mile and statute mile?
<0> hello
<12> Manyfold: yo
<0> how are you?
<12> Manyfold: bored
<12> when I should be busy :(
<0> what should you do
<0> ?
<12> Manyfold: i should be working on my phd hehe
<0> whats your thesis about?
<12> Manyfold: a digitial hologram printing machine
<0> so you are into laser technology?
<12> yeah
<12> I use a pulsed laser to print with
<12> I need to find a new job though
<12> my phd finishes in January
<12> :(
<0> then you still have physics :)
<13> I suggest you move on into some other field where you do another PhD
<12> Manyfold: hmm?
<12> Well my degree was comp. sci., and this phd was optical engineering
<0> are there other fields than physics?
<0> everything else is stamp-collecting
<12> For a post-doc i was thinking of working on quantum computing
<13> well ask if you can do several PhD's for the same department ;)
<12> or maybe on modelling the univrse
<12> or something like that
<12> but... you really don't get much money /
<12> :/
<12> it would be nice to earn some decent money
<0> JohnFlux_: so have we finally seen that|0>+|1> is really just the superposition of an qbit?
<13> what is better than having three PhD in comp science and five in physics?
<12> Manyfold: .. define seen
<0> pgm: having 8 in physics :)
<12> well I'll have two degrees and a phd soon, and for that I would get like k for a postdoc ($40k )
<12> the money is pretty awful I think
<12> in academia I mean
<13> heh, probably, but it is fun
<12> hmm
<12> dunno
<12> from what I see, in a few years I'd just be stuck doing paperwork :
<0> JohnFlux_: last time we talked about quantum computing you said a qbit is |0>+|1>
<12> you have to reapply for funding etc every few years
<12> Manyfold: right
<12> Manyfold: we've shown quantum effects over and over
<12> Manyfold: when you send a laser beam into a piece of gl***, you get a qbit :)
<12> some reflects
<0> or if we care to normalize add an factor of 1/sqrt(2)
<12> and some goes through
<12> one photon goes both ways
<12> well maybe gl*** is a bad example actually because it depends on the polarisation etc
<12> but a half silvered mirror instead
<0> why 1/sqrt(2) if |0> and |1> are both normal?
<12> http://www.quiprocone.org/Protected/DD_lectures.htm
<12> watch those. They are really good
<12> especially the first couple
<12> and they actually setup and experiment and prove it
<0> i have seen them all already and i know the answer
<0> i just want to see if you know it too :)
<12> ah
<12> well I studied quantum computing a lot
<12> had an exam in it and everything ;)
<12> hehe
<12> I have some ideas on how to build a quantum chip
<12> but I need to apply for funding to do that
<14> So is it because |0> and |1> are orthagonal to one another? I'm only guessing. . .
<12> merus: for the reason why you normalise them?
<14> Yeah. I'm not sure why, but that's my guess.
<12> a|0> + b|1> = a[1,0] + b[0,1] = [a,b]
<12> if a and b equal 1, then you'd have: [1,1]
<14> Oh, so yes.
<12> which has the length of sqrt(1 + 1)
<0> JohnFlux_: now let's see what your exam is worth
<12> so really you'd say: [sqrt(2), sqrt(2)]
<0> JohnFlux_: what role does unitary time evolution play in quantum computig
<12> Manyfold:
<12> hmm
<12> Manyfold: why are you testing me?
<12> ..
<12> you mean simplifying the situation so that it changes state between t0 and t1 ?
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