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Post Padding Room... (pg. 912)
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| decibel08 |
| quote: | Originally posted by Starfox
NU-NRG RULES!!!!!!! |
and you tell me not to spam... sheesh :stongue: :stongue: :stongue: :haha: :haha: :haha: |
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| drizzt81 |
| quote: | Originally posted by decibel08
hey now, we dorks (ill speak for myself) need to feel proud whenever we can... the chances are few and far between. after all, if coolness were measured by who could explain what the 'poynting vector' is, how'd we all stack up ??
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let me try to remember something from my EM fields class from last term. Wasn't the pynting vector associated with the direction/ location of power flow in a medium (e.g. a twin-wire cable)?
-looking at my book-
S (Poynting vector) = E x H
The units are W/m^2 and it defines the power density of an EM wave through a surface.
In short: if you have a EM wave propagating you can compute how much power is transported through a certain area using this vector. It also defines the direction of this propagation, but it will always be in the direction of the wave, since for a circular waveguide E point outwards and H curls around it, therefore the cross product will point in the direction of charge travel. |
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| decibel08 |
| quote: | Originally posted by drizzt81
let me try to remember something from my EM fields class from last term. Wasn't the pynting vector associated with the direction/ location of power flow in a medium (e.g. a twin-wire cable)?
-looking at my book-
S (Poynting vector) = E x H
The units are W/m^2 and it defines the power density of an EM wave through a surface.
In short: if you have a EM wave propagating you can compute how much power is transported through a certain area using this vector. It also defines the direction of this propagation, but it will always be in the direction of the wave, since for a circular waveguide E point outwards and H curls around it, therefore the cross product will point in the direction of charge travel. |
so, in my scheme, i guess this would put schranz up at the top of the pyramid with david hasselhof :haha: :haha: :haha:
i couldn't even have explained it that well and my e&m textbook is on the shelf 2 ft away from me... |
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| PatMcGroin |
| quote: | Originally posted by DJ Cubano
d00d gregor I gotta take physics next semester so I will def. need an e-mail or someone to get ahold of you when I have massive calculation errors :p |
i'm physics a right now. not too bad, just keep on top of your . taking physics b over the summer. but then physics is done for me!!!! hehehehe. :D
good evening everyone. at work again. sucks. but this is my PVD MONEY!!!!! :D :D :D :D :D :D :D :D |
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| PatMcGroin |
| quote: | Originally posted by butterfly
ok i changed it and it made a big difference. but wouldn't it be reasonable to kill this thread and start a new one to clean up? |
omg. never. :nervous: :nervous: :nervous: :nervous: :nervous: :nervous: :nervous: :nervous: :nervous: |
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| arleetec |
SUP PPR addicts!!!
Just had the tv on while doin my HW and JLo's new video came on. MAN oh MAN, now thats a video. LOL:toothless |
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| drizzt81 |
| quote: | Originally posted by decibel08
so, in my scheme, i guess this would put schranz up at the top of the pyramid with david hasselhof :haha: :haha: :haha:
i couldn't even have explained it that well and my e&m textbook is on the shelf 2 ft away from me... |
i did take a quick peek to refresh my memory. I knew that it had something to do with power transportation of EM waves. the details is what i did not remember :)
thanks, but i hate David Hasselhof... :whip: :whip: |
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| drizzt81 |
| quote: | Originally posted by PatMcGroin
good evening everyone. at work again. sucks. but this is my PVD MONEY!!!!! :D :D :D :D :D :D :D :D |
I just bought two PvD vinyls for < $10 on ebay :P |
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| PatMcGroin |
| quote: | Originally posted by drizzt81
I just bought two PvD vinyls for < $10 on ebay :P |
which ones??? |
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| Starfox |
| quote: | Originally posted by arleetec
SUP PPR addicts!!!
Just had the tv on while doin my HW and JLo's new video came on. MAN oh MAN, now thats a video. LOL:toothless |
lol heheh. btw.. long time since you been here! :P |
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| arleetec |
| quote: | Originally posted by Starfox
lol heheh. btw.. long time since you been here! :P |
Si.
OMFG, you don't have PVD as your avatar, now I really believe this world is ed up.:toothless |
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| KLINGKLANG77 |
Hi all!!!! just got in from work/school...teusday's suck...school early and all day then straight to work...yuck!
BriEEEEE!!! yes brie rocks, but camembert is a touch better, especially goat cheese camembert.... 2 years ago, i went to a cheese distributor (all around food distributor) with the executive and sous chef, to try out some new cheeses for our cheese plate and it was heaven. i love cheese (food) of all kinds, there must have been over 1000 cheeses and this place was about the size of roxy's dance floor just filled with cheese to the ceiling... this guy took us around and we got to taste so much cheese it was great....ah that was a great day....
no bri there is nothing wrong with crushes at all, i still get them not as much as i used to so crushes diminish as you get older in my expeirence....the thing is to distinguish between a crush and love....
now love, that is quite a feat......
hey drizzt like the font in your sig, do you think you could post the alphabet in that font...(no joke). i have a few old german dictionaries and it is in that font and it takes some time to figure out the letters.....so i need a reference....:D danke |
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