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Comments:
<0> Valox iQ resin
<0> err
<0> mother of canuck!
<0> hang on
<0> this looks slick
<0> http://www.geplastics.com/gep/en/NewsRoom/PressReleaseDetail/july_27_2006_geplasticslaunchesnew.html
<1> that link doesn't work
<1> just my connection. it worked
<2> some polish users?
<3> anyone listining?
<4> yes
<3> hello kanzure
<4> hey Manyfold
<3> don't you have to sleep?
<4> haha, yeah there are times
<4> it is kind of an advantage of being a young programmer
<3> what do you programm?
<3> and which language?
<4> whatever I need to use, heh'
<4> (to answer both questions)
<5> hello, i was wondering what the "energy" (in MeV) of a particle means in particle acceleration physics, like is it kinetic energy (as in 0.5 * mv^2), and if there is a way to determine the momentum of the particle from that?
<6> unity, 1 ev is equal to 1.602 x 10^-19 Joules
<5> darkgreen: yes, but what does this mean for a moving proton, for example?
<5> darkgreen: if the proton beam is 6 MeV, does that tell me anything about the velocity of the particles?
<5> darkgreen: or the momentum?
<6> just a sec, I want to be completely sure
<6> an electron volt is the amount of energy that a particle with unit charge (electron|proton) recieves when accelerated though a potential difference of 1 V.
<6> so if a proton has enegy 6 MeV, it could have been accelerated with a field w/ potential difference of 6 million volts
<5> i am ultimately trying to find the radius of bending for a proton around a bending magnet
<5> the formula i have is: p = mv = q * B * rho
<5> where rho is the radius i need
<6> what's the scenerio?
<5> i'm a intern and my mentor thinks i know everything about particle accelerators
<5> rho = mv / qB <-- this seems correct because i have seen it in two places, thus it must be correct
<6> does the particle have relativistical velocity?
<6> - cal
<6> someones gonna slam me for that one
<5> the energy gained by a proton moving through a field should be in the form of kinetic energy, so i will check up on the speed
<5> to see how close it is to c
<6> by scenerio I meant the nature of the experiement
<5> all i know is that our current beam isn't steady, it drifts over time (a hundred microns per hour maybe) and we are reconfiguring everything we suspect to be the source of the problem
<5> and the bending magnet is one of them
<5> it can go up to 16 inches is radius, and i need to predict the radii for H+, D+, He-3++ and He-4++ at energies between 2 MeV and 8 MeV
<5> and i am given the Hall Voltage of something...it's about 85.46 for He-4++ at 6 MeV, i'm not sure about the units, or what it is a Hall Voltage of
<5> 3.390182135522042E+7 <--- so the speed is about c/10 i guess
<5> sqrt((1.602e-19 * 6000000 * 2)/1.67262158e-27) = 3.390182135522042E+7
<5> ignoring relativistic corrections, (6.5477199343405E-20) / B is the radius in meters, where B is the field of the magnet
<5> this is what i got, does it look like i'm doing anything blatantly wrong?
<6> It's hard to say without a diagram of what the setup is.
<5> well i guess i'll just show this to my mentor and see if he starts yelling at me
<5> thanks for your advice, darkgreen
<6> unity, http://books.google.com/books?vid=ISBN0878915079&id=KVM2onr8_QYC&pg=PA752&lpg=PA752&dq=beam+radius+magnetic+bend&sig=G__GefhXBXcOTUeMF1rFUd6tbBM
<5> darkgreen: thanks, but i don't have a gmail account
<5> oh wait i can just register
<5> oh wow i was actually correct
<5> i'm not used to being correct
<6> me either :
<6> :)
<5> it's "me neither" :)
<7> hello
<8> hello
<4> hello
<8> I'm going to be making an app in vb that will calculate the minimum jump times of a bit of data between the computer being used, and the computer/host specified, using a traceroute that calculates the distance between one host and the next, but I need to account for the earth's shape...the wires aren't underground. Anyone wanna help?
<8> what it will do is compare the mathematical minimum to the actual ping request.
<9> And figure that there is no direct relation ?
<8> it's supposed to point out how inferior our computers really are for statistical purposes
<4> No. Traceroute shows you where things are going (IP addresses) that are not necessarily geographically inbetween the spawner and destination.
<8> kanzure, yeah, but the data has to go through all those ipz, doesn't it?
<4> Gammamute, yes, and ... ? Where were you going with that comment of yours, anyway? : )
<8> well, the ping will always be much longer of a time than the function used to compute
<8> kanzure: what do you mean?
<4> tell me about it, ever since my brother figured out the existence of BitTorrent my ping time to google.com has been 1490 ms ~
<4> Gammamute, are you saying you want a program to show that messages are not sent via optimal routes?
<8> Well, if I can get the algorithm for this app, I can use this to promote more development in network/server os's
<4> (psst, try the guys in #osdev too)
<8> kanzure: what it would do is less about the route, but each individual's mean of response times vs. their computed minimum response time.
<8> kanzure: will do.
<4> computed minimum? You mean, under 0 other workload?
<8> It will compare what would be physically possible to the actual result.
<4> well, that will be difficult unless you can attain a read out of what sort of operating system those servers are running, plus what hardware and so on
<4> (not meaning to put down the idea, I like it)
<8> kanzure: not really- the nature is to expose the deficiency in all hardware, saying we need to start over.
<8> in other words, if you pinged me, it would take about 15 secs. but we all know that optimised it should take less than one.
<4> (hardware isn't the only place where we need to start over, hint hint)
<8> kanzure: absolutely, but thats philosophy/religion/spiritual/cognitive.
<4> very well : (
<4> as for your requested model of the Earth to compute geographical distances, you could try looking at some U.S. national geography surveys
<8> yeah...I could imagine. I would need a stronger view of how the innards of the net works to be very advanced with it. Someone smarter than I would need to do it, but once complete it would be a very good tool for most server OS and hardware developers in the industry.
<4> not if it ends up in VisualBasic it wont
<8> well, the only other way would be to do it in ***embly or some other low level lang without a GUI. Too much work. the sockets need to be as slow as any other gui so it wont affect the stats.
<8> in other words, you want to battle test the ping, and compute what the ping should have been.
<10> alright got a question that i'm debating with a friend, wondering if anybody could offer some theory...
<10> if we were to ***ume there is a spatial 4th dimension, would that dimensional necessarily have a planck length?
<10> *that 4th dimension
<10> he says yes, i say now, but i think it may be a matter of math versus known physics
<10> and i apologize for my terrible typos
<11> hi all
<11> does anybody know where can I have a talk on my totally-automatic antenna optimization idea?
<11> not in contrast with work in paper http://www.merl.com/papers/docs/TR2002-02.pdf but based on two additional statements: 1. we got good NN cl***ification algorithms and 2. we got much, much computational power of thousands of wifi and radio enthusiasts
<12> grandrew, consider BOINCifying this? :p
<11> hm :-)
<11> BOINC seems to be not very popular but is definitely good
<11> the problem is not in computation power but is in the idea itself
<12> yeah?
<11> I want to use NN to cl***ify radiation patterns
<12> forgive me, still downloading the paper, NN?
<11> and to use truly stochastic 'starting point of optimization' generation
<11> NN -> Neural Network
<12> ooh, wow. Over my head
<11> hm. the problem is that the paper says there is not much success in automatic antenna design
<11> and suggests human-based cl***ification
<11> but I think that this sort of optimization task is very parallel-friendly and can be productive if used in public. I also suggest genetic optimization of the algorithm itself
<12> hmm, might work
<12> I never would have guessed that they were computationally modelling antenna design of all things. Then again, I know very little about antennas
<1> grandrew, maybe some knowledge about how EM actually works would be a better approach than a neural net running on the experience of users of wifi
<12> heh, ouch. I do agree with you DanF_DrC, I guess I had just ***umed that they were applying such principles to their simulations.
<12> It seems unlikely to me that the most optimized antenna design would be a theoretical definite, not something that would need computation
<12> er, that should read "it seems unlikely to me that the most optimized antenna would NOT be a theoretical definite"
<1> MindHack, I understand what you mean but given the span of already existing antennae that seems unlikely
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