Recent content by Michael2003

  1. M

    Understand Stefan-Boltzmann Law: Where Does the T^4 Come From?

    I've been reading about the Stefan-Boltzmann law, but there is one thing that I don't understand. Why is it T^4? I can't think of anywhere that the 4 is coming from and can't find anything about this with Google searches.
  2. M

    Best Revision/Learning Method(s)?

    I prefer to make sure I understand the stuff as I go through the course, then just do some practice papers before exams to make sure I know how the exam will be structured, and haven't forgotten anything major. Sometimes I stretch to looking at summaries in books, but that isn't absolutely...
  3. M

    Do you personally think school is something you need?

    For most of my education I went to a terrible school. I think the teacher's had something against me. I could be consistently top of my class and when the came to regrouping us, I'd get put down a group and never have this explained to me. If things went wrong because I was put under...
  4. M

    Finding vector perpendicular to plane

    Never heard of the terms dot product and cross product. I know what the scalar product is (mutiply out the rows and add them up), and I think that is what the book means. OK, let's see if I can explain this better. If I have the equation of a plane in the form ax+by+cz=d the direction...
  5. M

    Finding vector perpendicular to plane

    The book I have to learn this from says that given 2 points (A and R), you the normal (n) is given by: AR x n = 0. So if I know the vector AR, how exactly do I come up with the n that is perpendicular to the plane?
  6. M

    Pool & Physics: Uncovering the Science Behind the Game

    I have tried to play snooker in the past which has similar physics elements in it. I was terrible though. The balls kept flying off the table, and I'd miss the ball frequently. I didn't care though. I just played for a bit of fun, not to win or anything.
  7. M

    Finding vector perpendicular to plane

    If you have a 3d vector, how do you find out the perpendicular vector to this (the normal plane and stuff)? I know that the scalar product has to be 0, but surely that leaves hundreds of ones that would do that, as 2 of the 3 numbers can be chosen and the last one changes the value to 0.
  8. M

    Sci/Maths Mnemonics: Funny/Memorable

    And if you want to go backwards through the spectrum: Virgins In Bed Give You Orgasms Repeatedly. Nice and easy to remember that one.
  9. M

    General Forum-Chat About Anything

    I hate having to get up early. When I have to get up I normally have a short burst where I can think straight, then I feel sleepy again and want to go to sleep, but by then I can't. It isn't unusual for me to have entire conversations with people at about 8:00 when they are leaving (and I'm...
  10. M

    Who Is Considered the Greatest Mathematician Ever?

    In my opinion, Newton was the best physicist. He made giant breakthroughs in many areas, and I wouldn't like to think how far behind todays standards we'd be now if he hadn't done what he did when he did. Just think about all of the areas he worked in. Very few people have the sort of genius...
  11. M

    Same Screen Names Across Websites?

    I always have Michael as part of my name. For some reason it seems to be taken a lot of the time though (I can't think why :P), so I usually just have something after it, usually the year or possibly UK. Basically, I see myself getting very confused very quickly if I were to use anything other...
  12. M

    The Thunderbird & Firefox appreciation thread

    Thanks. I really should have switched from regular Mozilla to Firefox ages ago, it just feels so much cleaner. I found the web developer toolbar too, which is great since I like that one. Is thunderbird highly recommended? Any better than similar programs?
  13. M

    Can temperature ever truly reach absolute zero?

    Right, I think I sort of understand that. Just a couple of questions though. Firstly, does this site look fairly informative on quantum harmonic oscillators (I wouldn't want to read something that's wrong and try to understand it). Secondly, you said noble gases were studied. Was this done...
  14. M

    The Thunderbird & Firefox appreciation thread

    Still using Firebird? Why not upgrade to Firefox? Actually, does anyone have the link to the plugin to change Firefox's name to whatever you want? Or where I can get the web developer toolbar for Firefox?
  15. M

    Is Education a Right or a Privilege?

    Personally, I think education is a privilege after a certain level, but that right should not depend on how much money you have, rather how intelligent you are. If you hype up each and every level of education, then surely as more and more people do them you are just moving what is the...
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