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Comments:
<0> check this out
<0> http://hyperphysics.phy-astr.gsu.edu/hbase/forces/couple.html
<1> Title: Coupling Constants for the Fundamental Forces, http://tinyurl.com/yedsvt
<2> hehe
<3> Hi I have a question regarding Fickian and Ohmic flux. Firstly, I've never heard of the first term, but my neuroscience notes have casually dropped it in and said that you add it with Ohmic flux to get the net flux
<3> Could someone explain what it is so I can see why they are additive?
<4> Though I cannot answer your question, what other subjects do your neuroscience notes cover, maphive?
<4> And are they possibly, just maybe, typed? :)
<3> http://www.caam.rice.edu/~caam415/cox07/g_s1.pdf
<1> http://tinyurl.com/ya2y8u
<3> there they are :)
<4> Hurray!
<4> maphive: Hold on a few moments so that I can share with you my own
<3> ahh cool
<4> maphive: http://70.112.187.172/school/Biology/notes/output.html Biology notes (66k words, one semester @ 48 minutes per each of the 5 days per week, high school level)
<1> Title: The focus of this course is on the 8 major themes of biology, http://tinyurl.com/yfjd8s
<3> ahh
<4> In the mean time ..
<4> I am going to go digest your notes
<3> you might find my notes a bit intense
<4> hahahaha
<4> No siree,
<4> I'm Mr. Serious
<4> maybe
<4> maphive: So, I like the notes (mathematical biology), thank you. :)
<5> Does water filter out ultraviolet light at all?
<6> I don't think so
<6> when it refracts it might change the effective intensity
<5> If there were no ozone layer, would things deep in the oceans still be able to live?
<6> dunno
<6> probably
<6> at least initially
<7> you can get sunburnt when swimming
<7> so i guess water is a very poor filter for UV
<7> ihope: but very interesting question
<7> i guess there's also in the soil
<7> perhaps that's a more likely shelter
<5> Yeah, soil certainly absorbs visible light.
<5> Well, maybe if you looked hard enough... :-)
<6> is ocean water conductive?
<6> is there enough crap in it?
<6> if it's conductive it will probably damp out all EM radiation if given enough distance
<8> this is why i should remember my gross selection rules :S
<5> Well, it's saltwater, and last time I checked...
<6> and?
<6> that makes it very conductive?
<7> salt gives it free ions iirc
<7> which thus makes it conductive
<7> pure water is not conductive at all iirc
<6> if that's true, then deep water fish would not be immediately affected
<6> JohnFlux: true
<8> http://speclib.jpl.nasa.gov/scripts/lib/asp/buildhtm.asp?DB=water&ID=8
<1> Title: Sea water, http://tinyurl.com/y2l73z
<5> Hmm. "The earth without the ozone layer would be like our eyes staring straight at the sun without sungl***es!"
<5> Yes, the ozone layer protects us about as much as sungl***es do.
<6> I feel bad for people who live on the coasts nowadays
<6> won't be there too much longer
<7> microacg: oh please
<7> microacg: every coast i know off, the houses are at least a meters above the high tide line
<7> microacg: global warming will raise the level by a few cm's or something
<6> a meters?
<7> typo ;-)
<6> JohnFlux, in the long run I don't think that's true, in the very short term it probably is
<7> a meter or so
<6> watch the Al gore movie lol
<6> he projects more
<7> actually just downloaded it
<6> ditto
<6> I'll watch it one of these days
<7> but if you melt all the icecaps, it won't raise it much
<6> I think you are very wrong
<6> double check that
<7> i think its complicated because it will change the tide patterns
<7> hmmm
<7> "If all of the Antarctic ice melted, sea levels around the world would rise about 61 meters (200 feet)"
<7> okay so I was slightly out
<7> :P
<9> proper ****ed
<7> maybe I was thinking of some particular ice shelf
<6> haha
<6> yeah...
<6> watch the cute animations of the water flowing over coastlines
<9> if it comes to that the total rise is about 77meters afaik
<7> yeah sounds about right
<6> if we throw all the 'anti-global-warming' people into the ocean, it will go up another few milimeters
<7> "There is a significant amount of ice covering Greenland, which would add another 7 meters (20 feet) to the oceans if it melted."
<7> But also there's the expansion of the water etc
<6> expansion?
<9> all the animations of coastlines vanishing is only the 7 meter rise of greenland
<7> microacg: "Water is most dense at 4 degrees Celsius. Above and below this temperature, the density of water decreases"
<6> oh you meant thermal expansion
<7> right
<7> what about mars's ice caps
<7> what if they melted
<10> is there some kind of notation/language that I can use on the PC for physics equations
<10> for things such as Delta etc.
<6> bulio, for typing into chat?
<10> yeah, and on forums
<6> not really, but let me link you to something
<11> use mathematica notation maybe
<11> octave alike
<11> just my 2 cents
<6> http://wikipedia.org/wiki/User:Merge/Drafts/Plaintext_mathematics might help
<1> http://tinyurl.com/u3xro
<10> thanks
<10> I suppose that this channel is too advanced to discuss high school physics?
<6> no it isn't
<6> this channel is not too advanced for any reasonable physics question
<4> Hah
<4> !
<4> Please, everything physics is of valid use
<4> although some might say that only graduates are allowed, I tend to disagree with those people completely!
<4> JohnFlux: Do we have geographic data of Mars enough to know where the water would flood to ? Hm.
<7> kanzure: well i think it's actually co2 so it just sublimes
<12> kanzure, I thought the MGS mission did a huge amount of radar surveying
<12> JohnFlux, no, I think there's water in the martian ice, as well as tons of CO2
<7> well, we don't really i thnk
<7> think
<7> not sure
<12> JohnFlux, 4th paragrah http://en.wikipedia.org/wiki/Mars#Climate
<6> don't trust wikipedia too heavily hehe
<13> wikiality
<14> Hi all!
<9> hi
<14> Could you take a look at http://images.schattenschreiber.org/f=ma.png ? ... I don't understand how I get from that picture to the cart's acceleration :-(
<6> I don't have permission to access that image ._.
<6> n/m I got it
<14> Try again, sorry
<6> ok so
<6> both carts are 1kg?
<14> Sorry if I chose wierd names for the forces, but I don't know how to sat it in English
<14> Actually, m1 is a cart that gets put into movement by weight m2
<6> oh the one on the right is .1
<14> :-)
<14> yes
<6> I can help you with that system
<14> Kewl :)
<6> so you know the sum of the forces acting on a body is equal to its m*** times its acceleration
<14> I need to know a and I have read on Wikipedia that the formula I need is f=m*a
<6> if the sum of the forces is not zero, that is considered a net force
<14> yes
<6> so we can look at the forces acting on each body
<14> so the weight force on m1 doesn't matter
<6> first look at the body on the left
<14> k
<6> right, the weight of m1 is cancelled by the normal force provided by the table
<6> now let's look at m2 for a second
<6> there are two forces
<14> What I called Fhold1 is called "normal force" in English?
<6> yes
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