| |
| |
| |
|
Page: 1 2 3 4
Comments:
<0> :D
<1> JabberWalkie is a genius
<1> as him
<2> hmm
<0> iasked a question here earlier, no reponse. what happens if F(static friction) = F(max static friction)?
<0> do they just cancel each other?
<3> not a genius
<0> is there movement at that point?
<1> yes you are
<0> or is it equilibrium
<1> tell him JabberWalkie
<3> above average intelligence and i work very hard....at most...
<0> ignoring all other forces
<2> Like anything else in the world, genius is worthless unless applied correctly
<1> answer what_in_a_name, please jabberwalkie
<3> whats_in_a_name: nothing will happen
<3> whats_in_a_name: although if you go JUST over
<3> it will start accelerating
<3> and im not in a question answering mood right now....i have work to do....
<1> JabberWalkie did you p*** Geology?
<0> im sure he did
<0> that would be an easy course
<1> you think
<0> :>
<2> not to me
<3> never took it
<2> math and science don't come easily to me
<0> physics would be harder than geology
<2> whats_in_a_name I agree
<1> Chris wants to drop his course
<1> what do you think
<2> all I'm dropping because I'm flunking
<1> JabberWalkie? are you getting your phd sweetie
<1> Rude
<0> hes a phd candidate?
<0> chris, i wouldnt drop it.. whats your major?
<4> can anyone think of an experiment that exposes the wave nature of electrons, *besides* the double slit experiment?
<1> Ahh! close to finishing i think
<5> Resonant tunneling.
<1> WOE!!!! darkgreen what are you trying to do?
<2> darkgreen exposes the what of the who to the, yeah you lost me
<5> oy
<1> you need to settle down b4 playing that way
<1> what? wow
<5> Nothing.
<2> no comprendo physics
<5> darkgreen|: There are a number of devices that absolutely depend on it.
<5> darkgreen|: Like RTD's. Quantum well lasers...
<1> Wowbagger?
<1> what degree do you have?
<1> if any
<5> EE
<1> whats that
<5> BASc in E
<5> E
<5> Working on MASc
<4> I was thinking of something a bit more macro
<1> Englis?
<1> english
<5> Electrical engineering
<1> ahh
<6> darkgreen| newton rings for testing gl*** flats and rounds
<2> air force is lookin for electrical engineers
<4> those are photons
<1> what about you dadaless
<1> whats your degree in?
<6> what about me what? ive not been following closely.
<6> R&D machinist
<1> which is?
<6> i build scientific instruments.
<1> like what?
<6> currently for neuroscience, but hopefully for physiscs or astronomy some day
<6> http://dadaless.blogspot.com/
<6> i havnt updated in a few weeks, bu there you go
<5> Dadaless: That copper screen easy to get?
<6> yes, but pricey
<5> How pricey?
<6> the whole cages screen was ~$160
<1> bet you can find on ebay
<5> $160 for the one in the pic? That seems ok considering how much screen rooms cost.
<1> Copper is pretty pricey
<6> materials came out to ~400 iirc
<5> Not that I actually have any pricing for screen rooms. :)
<6> ive got a sheet somehwere.
<5> Don't worry about it.
<5> No current need for one.
<6> if you can find bare aluminum irs cheaper, but i couldnt find any
<6> didnt look to hard though
<5> hm
<5> k
<1> considering hopping my uncles fense at his business and stealing all his
<6> anathor obtion it to burn and abrade the coating of the coated aluminium screen at the contact points.
<5> Put any RF ports or power with filtering in there?
<6> the lab did power conditioning for the rig
<6> that was already in place
<1> Just an idea
<6> its not "tempest tight" so it has gaps for cables and clearance to the air table, etc.
<5> Yeah... not always needed to be that tight... depends on the use.
<7> darkgreen| you there? i got an idea for your experiment
<6> FM radio's "fencposting" is an exhibit of electron wave nature i think.
<4> what's up NoorulIslaam
<7> darkgreen| well the cl***ical double-slit experiment exploits the position-momentum relationship
<1> oh you are a know it all NoorulIslaam
<5> "fencposting"?
<4> the interaction at the edge of the slit is what's bothering me
<7> design a time-wise double-slit experiment which exploits the time-energy relationship
<7> you have a distribution of electron energies over a period of time
<1> HELLO!! Girl here
<6> where the reception goes from good to no-exsistan in a few inches or feet and back again, so as you move along in rapidle cuts in and oout.
<7> rather than a distribution of momentum over a distance
<7> Pradalover yes?
<5> Dadaless: That has nothing to do with electrons.
<4> ok, NoorulIslaam that sounds like a reasonable think to do
<6> interfearance from a ridgeline or other occulting body has caused increaded and decreased signal areas in close proximity
<4> I was thinking of a magnetic slit
<1> hey there ***y
<4> no physical slit at all,
<6> it dosn't?
<4> but localized 'holes' that would guide the electron down one path or another
<4> holes in a magnetic field that is
<7> darkgreen| you might wanna show how the A-field of a toroidal solenoid can affect the result of the double-slit experiment
<5> Dadaless: Sounds like you're just talking about constructive and desctructive interference of EM waves. No wavenature of particle stuff.
<1> directed towards NoorulIslaam....mmmwah
<7> even though there is no B-field there
<7> Pradalover ummm... do i know you?
<1> no...do you have to?
<6> i dont see the distinction, but im a bit daft sometimes so dont worry about it.
<5> :)
<5> Radio waves aren't electrons flying through the air.
<1> yes they are
<5> oy
<0> radio waves are electro magnetic radiation
<5> yes
<0> of a certain wave length
<5> Sure. But they aren't electrons. And so their interaction doesn't say anything about the wave nature of particles.
<4> so A is the magnetic vector potential. its been awhile since I've seen this.
<5> Yup.
<7> darkgreen| yeah... its non-zero outside the toroidal solenoid even with a zero B-field
<5> But it's just a mathematical tool... isn't it?
<7> and of course a zero E-field since the solenoid is electrically neutral
<7> Wowbagger_ thats the interesting thing. it has a real and measurable effect on the outcome of the double-slit electron experiment
<4> B = dell X A
<5> Really?
<7> Wowbagger_ yes
<5> hm
<5> This is worth learning about.
<7> darkgreen| yeah... which means that A = - del x B right?
<5> Usually you get the field by taking some kind of derivative of the potential.
<5> nevermind.
Return to
#physics
or
Go to some related
logs:
qmail-lspawn ./Maildir/
suse 10.1 glademm
#css
wincodecs
#centos
#kde
shlomi andy petdance rindolf
php statement modifiers
#debian
video playback xgl sux
|
|