thedarkshade

No no,, it's different! [math]f(x) = \frac{1}{x (\ln x)^2}[/math] you just switch sides of the fraction and you get: [math]f(x)={x (\ln x)^2}^{-1}[/math] now that -1 multiplies that square, so no we get: [math]f(x)=x (\ln x)^{-2}[/math] then -2 goes in front and we get [math]f(x)=-2xlnx[/math] I also did this on the second function too!

I know that they're two different things, but when he's talking about dark energy, he says it's dark because we don't completely know what is causing the expansion of the universe (he clearly knew about Big Bang)! It's wasn't much for the dark energy or dark matter that I posted that but because of the way he's naming it DARK.

I can't really figure out how's the real form of the functions but I'll try. if the first one is: [math]f(x)=\frac{1}{xlogx^2}[/math] then this can also be written as: [math]f(x)=-2xlogx[/math] and if the second function is: [math]f(x)=\frac{1}{(log3^x)^2}[/math] then this can also be written as: [math]f(x)=-2xlog3[/math] so now you got: 1. [math]f(x)=-2xlogx[/math] and 2. [math]f(x)=-2xlog3[/math] now give x any value and you'll find out what you want!

yeah, but one pound of what.One pound of sacarose has less calories than one pound of proteins. And one pound of proteins has less calories than one pound of pure fat. You have to define one pound of what!

Something that you don't know anything about it seems dark and gloomy to everyone. It's one reason to name dark. http://youtube.com/watch?v=WhmO1nrRtsI even this California University professor names something dark because they yet don't know what causes it!

Invisible and unable to be hold or touched. The adjective dark has been given to it just because we no so little about the issue, so it's still in dark "frames".

No! Zero it's neutral, on its left you go on to minus infinity and on its right you go on to plus infinity. And no matter what number you take (the highest one you can imagine!) you have still not reached infinity. Any number is within infinity (+ or -) but it's never equal or grater than infinity. So any number will always be less than infinity!

Thanks for all this guys, I'm learning Python right now, and it seems to be quiet good, really. Thanks for everything.

Le's hope we're alive till 2013 to discuss about it!

If you are referring to outer space, you got to know that objects (planets) are moving aways form each other, the universe is expanding so such attraction seems to be minute!!! There is no nothingness , it's just dark, something that we still just don't know what it is. yeah, you're right. Just the creation of everything from nothingness! I'm sure, but I've heard somewhere (not sure where!!) that there is one planet in the solar systen, whose trajectory is normal (90 degrees) to other planets trajectories, and that somewhere round 2009 we'll be able to see that planet from our own!

OK, thanks a lot Cap'n Refsmmat. That helped a lot!

If there is gravitational attraction between two objects, and everyone knows (but you seem not to) that those objects are made of particles (like everything else), and so there is gravitational attractions between them too.

And should I follow only python's official tutorial or there is any other tutorial out there that would be more practical for starters (I am one at this:doh: )? thanks but they seem not to work, because they require Python 2.4 and I got 2.5

yeah, it's something like that, and thanks:-)

Yes yes you're right! I guess I should go through that ENDLESS tutorial and then try to make something out of it. Thnx

Now that is exactly why I posted [math]F=G\frac{m1\times m2}{r^2}[/math]

I just downloaded Python25, and it seems to be "a little" primitive, but I'll get used with it. Can I make mathematical applications out of it? because it doesn't look that sophisticated you know!!!

OK thanks, but the programs you write with it, are they script programs or they can be opened as any other program?

Whatever, it really doesn't matter (C, C++, Perl, php, HTML, java etc) the problem is that I have not a clue of programming with either of them, and I guess some of them are easier some harder, and I would like to know with which one should I start! I'm interested in doing mathematical programs mostly! Thanks a lot MrMongoose, yeah I'm into more scientific stuff. And sending some links would be just awesome! Thnx

ok Snail, let's clarify this. Superman82 wrote: then insane_alien corrected him: And then I just agreed with insane_alien, that there is always gravity!

I think the kind of disagreement (gravity vs particle physics) you mentioned is way beyond what's being spoken in this thread!

Hi guys! New chances are opening up in the city I live, but few conditions are limiting me of getting them. And one of them is programming:doh: . I'm thinking (and I really need to) of learning to program, so I was wondering which software would be the best to start with, and if anyone of you could recommend any books to read about that, that'd be great. Any help would be mostly appreciated! Thanks!!!

Yeah, just like that! Every particle in the universe attracts another particle with a force measured by: [math]F=G\frac{m1\times m2}{r^2}[/math] Newton's universal law of gravity. There always is gravity (of course as long as there's matter) just you said!

It wouldn't work at all, especially in real fluids. Because when molecules hit each other there is always some loss of energy, and this way sooner or later that water would stop moving. I'm also curious to know what he was thinking of when he proposed that!

False hope! Nothing can keep on moving forever without the necessity to refuel or "give" energy to it. Skeptic is right! Energy cannot be created or destroyed. And one thing that is crucial (and probably you forgot it) is that energy flows! No matter how much energy is given, there will always be need for more, because it flows, it does not recycle! For example: "Sun must have given a HUGE amount of energy to earth from its very first creation. But if we turn off sun, life would just disappear for lack of solar energy that plants need for photosynthesis" It's like that!