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Comments:
<0> anubiss: you mean the heat caused by friction of mechanical motion? what i want to know is if i put in x amount of watts in the form of heat, how much heat is "exhausted" on the cooling end of the engine
<0> the heat causes the working gas to expand, but then that gas is compressed, and the heat is exhausted, but since the heat is the energy source which makes the gas work, some of it must be converted into mechanical energy... wouldnt that amount depend on the efficiency of the engine?
<0> in case anyone wants to add some input, im talking about a stirling engine
<1> FuriousGeorge, yes.
<2> Tom Brady used to be the power forward for the Dallas Mavericks, but he got traded to the Kansas City Royals for Wayne Gretzky...
<1> The maximum possible efficiency being the Carnot efficiency.
<2> Tom Brady used to be the power forward for the Dallas Mavericks, but he got traded to the Kansas City Royals for Wayne Gretzky...
<1> http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/carnot.html
<3> Tom Brady sounds like he hung around in a bunch of some kind
<4> anyone in here familiar with plplot?
<5> Kurt: this is probably the wrong channel for sports.......just a hunch....
<5> unless you wanna talk about human kenematics...
<5> irbdavid_: use gnuplot man!, there is nothing it can't do...except for the few things it cant do....
<4> perhaps, if i can't get plplot up and running
<4> need something with a good interface from C
<4> currently using pgplot, which is all well and good for 2d stuff, but no 3d capability (surfaces etc)
<5> ahh
<5> ive got a bunch of wonderous data....
<5> totaly going to do some data analysis
<5> woot!
<4> but if the worst comes to the worst, i could dump it all to a data file and read that into gnuplot
<4> but that just adds another thing to the todo list :(
<5> thats normally what i do...
<4> JabberWalkie: ever used R?
<5> ahhh Xgl just crashed :(
<5> irbdavid_: and no
<4> supposedly good for statistical analysis
<5> ahh
<5> is it open source?
<4> not sure actually
<4> certainly free, but i think not
<4> JabberWalkie: having some XGL problems? :p
<4> you should bin it, get a mac. prettier :D
<5> irbdavid_: i need money to buy a mac
<4> i got mine on student discount, using hard-earned cash. worth it though
<5> nah, linux is working just fine, im using regular X now...
<4> ubuntu is coming along nicely, it must be said
<5> hey my gentoo is doing ok...
<5> the nice part about gentoo is that its hard to install, and it makes you not want to bother installing somthing else
<5> but once it is installed, you can really reap the rewarding experiences of compiling for 8 hours
<5> and there is a good online community...
<6> grr
<6> how do I spell that astronomers name
<6> curpernicus
<2> "copernicus"
<6> ah copernicus
<6> stupid spelling
<6> thanks
<6> I just learnt that martin luther himself didn't like copernicus
<6> "This fool [Copernicus] wishes to reverse the entire science of astronomy; but sacred scripture tells us that Joshua commanded the sun to stand still, and not the earth.
<6> "
<7> hi
<6> yo
<7> Is this a channel about physic philosophy and knowlegde?
<6> hmm
<6> manience: it gets used as such sometimes
<7> JohnFlux: ...and the other times?
<6> manience: physics has a philosophy?
<6> manience: other times we talk about ufo and religion :-D
<7> JohnFlux: I think so... physics is not only science.
<7> JohnFlux: do u from germany, usa, or other...?
<6> UK
<7> JohnFlux: UK? Nice...near which town or poi?
<6> Brighton, which is below London on the coast
<7> JohnFlux: Yeah, thx... I know where Brighton lies
<6> manience: do you think that for children, learning the philosophy of physics is more important than the physics knowledge?
<6> manience: or at least equally important
<7> JohnFlux: In my really opionion physically philosopy is less important for children. its more an subject for advanced studying
<6> I think the basics are important
<6> so few people seem to understand the basics - like nothing can be prooven etc
<6> that physics is about making hypothesis, testing them sufficently until they are accepted theories and then rejected if data comes out against them
<6> I'd also like more teaching about how much strict adherence to religion has caused the downfall of science on many occasions
<8> Such as stem-cell research?
<8> Personally, if I had 1 wish, I'd probably wish for no religion to exist, it'd stop a lot of problems in the world.
<6> well I was thinking more of the dark ages, earth-at-the-center etc
<8> But no earth is flat nonsense? Given that people in the middle-ages didn't even think that ...
<6> zylche: I'm very much an atheist, but I don't think that would be a good idea
<6> I was refering to earth at the center of the universe
<6> the sun going round the earth
<9> zylche, life is a problem
<8> True.
<6> In Kepler's time, they burnt any 'heretic' books they could find
<6> and closed down the school Kepler taught at (he taught math)
<10> woo
<10> looks like I found something interesting then
<6> hmm
<10> abasinisvacant: I agree, life is a problem. Do you remember Laplace and his dream of "solving the universe"? He didn't quite get it all right, but it was an interesting notion anyway.
<9> a book?
<6> kanzure: hmm?
<10> A book? No.
<10> JohnFlux, Laplace was a "celestial mechanic" from a few hundred years ago
<9> kanzure, what was interesting about it?
<10> You do not find the idea of being able to "solve the universe" something fun to play around with, conceptionally?
<10> wow
<10> *conceptually
<9> i do, but i meant, what did Laplace thinki
<10> Well, he was actually more like Newton and thought that he could just simply predict the motions of planets and asteroids and other astronomical phenomena and show how everything follows from celestial mechanics,
<10> but we know now that things on the small scale (us) can easily influence bigger things: blowing up planets, cracking open asteroids, etc.
<11> hello
<11> where's hondje
<5> no one knows
<5> !seen hondje
<5> @seen hondje
<11> hey sup jabber
<5> hi
<11> havent been here in a while...
<11> whats new
<5> ummm...not much..
<5> im doing some data analysis
<5> for my lab
<5> its sketchy data...
<11> so what do you know about phased-array radar systems?
<12> hi. i'm designing a water electrolysis experiment, and i want to use carbon electrodes. i could buy carbon rods off the internet, but if i wanted to be cheap, could i use charcoal/graphite sticks meant for art? would they be as electrically conductive?
<5> NoorulIslaam: nothing
<11> :/
<5> FantasticFoo: dunno, get some and try to p*** a current through them
<12> i just thought that maybe they wouldn't work as well, because they're not as pure and compressed...
<5> im sure thats a posibility
<12> im not really prepared to measure a current though so thats why i asked here
<5> FantasticFoo: well im no chemist....but i would then that charcoal/graphite sticks used for art might have a good chance at being contaminated....
<5> *think
<5> why not just buy somthing from a uni chem store?
<5> or any supplier of chemicals..
<5> or if you just want to produce hydrogen, then that kind of stuff won't matter
<5> but if you want to study the electrolosys of hydrogen, then you need things to be pure...
<12> well, i dont need anything to be super pure
<13> i doubt art suppiles would work well
<12> just as long as the hydrogen bubbles up with abundance
<13> and are probably larger than you need
<13> FantasticFoo: there is a piece of gl***ware designed specificly for doing this
<13> it collects both the gases
<12> Hotwire: oo cool
<12> well i have to go now
<12> bye
<5> i gotta say, my spectral response data, looks pritty damn cool
<5> damn ***y data...
<14> even bare copper wire will work
<14> silver foil is the normal "science cl***room demo" material
<5> anyone here good at fitting data?
<15> sepctral response of what?
<11> hey drc
<11> danf_drc do u know anything about phased-array radars?
<15> little bit yes
<11> danf_drc ok
<11> do u know the kind that have both transmitter and receiver micro-units arranged into an array?
<11> i was wondering how they manufacture the mini transmitters and receivers
<15> no I've only seen one with delays lines
<15> but I heard that electrically controlled delay was possible now
<15> so you could scan without moving it
<11> danf_drc ah
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