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  1. L

    For you maths-people as I'm confused.

    Does this notation mean: 0.999999... (going on infinately) ?
  2. L

    Ways to die

    Well if that's all :rolleyes: We're talking about two different things here you seem to combine to one. As I see it there's killing and hurting which are two different things. Hurting someone can even be worse then killing someone.
  3. L

    I think there for I am or I am there for I think

    We should first think about what we mean with existing. It is a word for something we experience. We experience existance of things. The main thing we experience is our own existance. So your own thinking proofs your existance for yourself... not your existing to others! We can only proof things...
  4. L

    Quiz question

    This was a national science quiz question: What's the smallest amount of molecules for water to have the properties of a fluid. a)1 molecule b)2 molecules c)6 molecules What's the answer and why?
  5. L

    After Death

    Being happy feels good and if it didn't there wouldn't be a reason for us to stay alive.
  6. L

    After Death

    Everyones goal in life is to be happy. Why?, becuase we were made that way.
  7. L

    For you maths-people as I'm confused.

    Thanks for clearing that up... though I still think it's weird.
  8. L

    For you maths-people as I'm confused.

    How is it possible that I can write (for example) 1/3 and be 100% accurate while I couldn't write the same number in decimals being just as accurate? It has to do with our choice of system. But what is it exactly? I don't seem to grasp it or isn't there anything to grasp?
  9. L

    Have a cone and divide it into infinately small slices

    This question just popped into my mind: Is there a difference between infinitely small and zero?
  10. L

    Have a cone and divide it into infinately small slices

    erm... the difference would be infinitely small? But that would still be a difference which makes it possible to glue the slices together and get the cone back again rather then a cylinder. If the difference would be zero we would get the cilinder.
  11. L

    Have a cone and divide it into infinately small slices

    If I have a cone and divide it into infinately small slices. Wouldn't both sides of one slice have the same area and wouldn't the next slice (and so on) have the same area as the slice before. So wouldn't your cone actually be a cylinder? My answer is no, because the reasoning is wrong. If I...
  12. L

    Physics AS exam

    You say it yourself. It's a mathematical abstraction... in other words not to be confused with physical reality. Do note that I don't know anything about the fluid particle you're talking about.
  13. L

    Physics AS exam

    Well if we stay at Newtons theory then the answer is clearly No. F = m * a --> a = F/m if m = 0 we will divide by zero which isn't aloud. There's no (classical) physical reality of an object with zero mass... it has no physical meaning. Something cannot have an infinite acceleration if it...
  14. L

    Need some help with Applications and Problem Solving .

    The width of the mat is (if I read correctly) the width of the border that surrounds the picture. The problem now becomes: If I have a photo with area 96 and then put a border around the picture with the same area my total area (photo+border) will become 192. Now this equals...
  15. L

    Understanding of what inertia is?

    Why is there even a need for the law of inertia? I thought of it and within classical Physics I don't see the need of the concept inertia at all. The natural state of an object is to stay at rest or move with a constant speed along a straight line. The law of inertia says mass provides...
  16. L

    Gustav Daléns Invention

    That's what I read and it probably was the case, but still... they should have waited (when did he actually make this invention?). Then he probably wouldn't have won. It was probably a fine invention, but a Nobel price?, I think not. But I'm still curious about what he exactly invented...
  17. L

    Gustav Daléns Invention

    Gustaf Daléns Invention He won the Nobel price for Physics for his invention. "for his invention of automatic regulators for use in conjunction with gas accumulators for illuminating lighthouses and buoys" How did his invention actually work? You could hardly call it a mayor...
  18. L

    We could just aswell all be dead.

    Seriously, what's there to live for? We are all slaves of our own being. To be honest I don't think much of life, but maybe that's because I've never truly been happy. I believe happiness is the only meaningfull thing to human beings.
  19. L

    Linear Momentum

    Thanks!... it's actually not a head-on collision, but I figured out I could manage to fit in the angle myself. If I experience difficulties I'll let you know. :cool:
  20. L

    Linear Momentum

    Two balls hit eachother. One ball with a mass of 2m standing still relative to the earth. The other ball has a mass of 1m and hits the ball of 2m at a certain speed. The collision is elastic. Could you calculate the proportion of Linear Momentum between both balls after the collision with...
  21. L

    God releases Satan ? Why God allow Evil to exist?

    Saying that to me would mean I will take you less seriously. Because there's no way you could convince me those stories truly happened. If they were true then we wouldn't have the discussion about a God, because it would be clear to us then. Having said that I can see why you believe... if you...
  22. L

    God releases Satan ? Why God allow Evil to exist?

    So what you're saying is that we aren't perfect and we have to get punished for that? Didn't God make us unperfect in the first place?
  23. L

    What would be proof that God exists?

    I believe the rules of nature are unchangeable. The thing is though that we haven't found the whole set of rules yet and maybe we are wrong about some of them. So if there was some new phenomena we would ofcourse question the rules of nature we found, but I was really talking about miracles...
  24. L

    How does a mathematician define Mathematics?

    Moshek what country are you from?
  25. L

    What would be proof that God exists?

    I would start believing if the rules of nature would be broken to benefit mankind. ...or actually broken for any Godlike reason.
  26. L

    How does a mathematician define Mathematics?

    Maybe I did ask the wrong question, but what I really wanted to ask should have been clear by now. You can't hang me up on every word I say. I think you've seen ghosts. I don't think mathematics is deficient. And for the zillionth time... I'm not interested in an answer.
  27. L

    How does a mathematician define Mathematics?

    Thanks for another usefull contribution, though it seems you still can't see where I'm coming from. I never said it had to be short and I certainly didn't ask for an answer.
  28. L

    How does a mathematician define Mathematics?

    Hmmm... seems I couldn't care less. :rolleyes:
  29. L

    Maths needed to study QM and GR?

    What Maths subjects should I study to understand Quantum Mechanics and General Relativity?
  30. L

    How does a mathematician define Mathematics?

    I found it for you! :smile: For Mathematics The current big-band His here real Glory. Milky way is around us. A solar system was created. Everything is a number Said Pythagoras While he could hear The music of the spheres. But so many water Cover the head of Hipasus After...
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