Jump to content

BigMoosie

Senior Members
  • Posts

    431
  • Joined

  • Last visited

Everything posted by BigMoosie

  1. [edit] Problem Solved [/edit] A while back I opened a new text document in notepad and saved a blank file as ".exe" (no prefix). I tried to open it and got a message saying it would not run, then when I tried to delete it it says: Cannot delete Desktop:\ It is being used by another person or program. Close any programs that might be using the file and try again. No matter what I do I cannot delete / rename / move this file, I wouldn't really mind if it was tucked away in my hard-drive somewhere but it is on the desktop and just adds to the unnecessary clutter. Any ideas?
  2. The x coordinate of the center of your arc will obviously be [math]\frac{x_1+x_2}{2}[/math] The angle "a" of the arc can be expressed as: [math]2(\Pi - tan^{-1}(\frac{|x_1-x_2|}{2y}))[/math] *where y is the y-coordinate of the center of the arc. And along with this equality you should be able to solve it: [math]ra = L[/math] where: [math]r = \sqrt{(x_1 - x_2)^2 + y^2}[/math]
  3. If you are given 2 points and the arc length then I would imagine that there is only one solution making the "maximum area" the only possible area.
  4. You cannot dismiss the possibility without proof. There is nothing to support extra universes but there is nothing to refute them either.
  5. 60 carbon atoms arranged in a soccer-ball shaped structure. A couple of good links. Some pretty pictures. Try also searching for "buckyball" (anothor name for it).
  6. [math]\frac{a}{c} + \frac{b}{a} + \frac{c}{b} > a+b+c[/math] [math]a + b + c > (a+b+c)(abc)[/math] [math]0 > (a+b+c)(abc - 1)[/math]
  7. If you consider that the state at 2 minutes will be ON then consider the same situation only limiting to 4 minutes (on for 2, off for 1, on for 0.5...). According to your analagy it should ON at the 4 minute mark, but the poblem with this is that after 2 minutes it is in synch with the origional problem only the opposite state.
  8. Ahh, should have looked that up. Sorry.
  9. Here is a similar idea I heard once, and it is less theoretical than the one being discussed: There are two racers: A (fast) and B (slow). B gets a headstart and when A starts running, B is at the 100m mark. When A gets to 100m he reconsiders his situation and sees that B is at the 150m mark. When A gets there he reconsiders and sees B at 175m, and when he gets there B is at 182.5m, etc etc. As you can see A will never reach B because each time he gets to his next destination B will have inched forward ever so slightly.
  10. By the time 2 minutes is reached the theoretical light bulb will have changed state an infinite number of times which is impossible in a finite time period therefore the question makes no sense to begin with. Here, this explains it nicely: http://www.random.abrahamjoffe.com.au/public/scrap/light.htm
  11. I don't really care about the scientific value, could you imagine having a pet dinosour chained to a pole tearing up the back-yard? How awesome would that be!
  12. I agree with Xyph, and life happens to be one of those properties.
  13. Directly between two black holes I would image the gravity would be cancelled and would be neutral, so when the event horizons pass over each other would there be a space between that was unaffected? If I am not explaining my question well please tell me. It seems quite bizarre to me.
  14. No wonder you speak of it so lightly, keep it that way.
  15. I am optimistic that it would be possible to create a creature that looks like a dinasaur built from leftover DNA. I remember reading in newScientist that if two or more descendants of a particular species exist then it is possible to recreate much of the origional species' DNA by using very clever algorithms, just how much is lost is the only quesion. Would it be possible to somehow make a mule fertile?
  16. I love all kinds of genres, any film can be great if it has a good story to tell, but I most enjoy these action, slightly bizarre / surreal kinda films such as Sin City and Fight Club.
  17. From wolfram Notice that the sign before the root symbol does effect the value of the surd. The [math]\sqrt{}[/math] sign means the "principle square root of". I may have contradicted myself before but this is where I am coming from.
  18. [math]\sqrt{x}[/math] When you click on LaTeX images a window pops up with this link that goes to nowhere: Also when you hover over the image a blurb appears that incorrectly says: \\sqrt{x} It appears you need to run stripslashes() on the title and alt attribute.
  19. I see what you guys are saying, but I have been led to believe that if I wanted to make x the subject in this: [math]x^3 = 8[/math] I would only be partially correct saying: [math]x = \sqrt[3]{8}[/math] And the correct answer which gives all three solutions would be: [math]x = \sqrt[3]{8} (sin(120n)i + cos(120n))[/math] (where n is an integer) Edit: The complex solutions are actually: [math]\sqrt[3]{8}=-1+\sqrt{3}i[/math] [math]\sqrt[3]{8}=-1-\sqrt{3}i[/math]
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.