Recent content by Dave

  1. Dave

    Solve Medication Problem: Take Exactly 1 A & 1 B Pill

    You do not know which pill is which, but you are 100% sure that each of the two piles now contains two halves of pill B and half of pill A. Now go back into the pill A box, take out a pill, cut it in half, and add one half to each stack. Now you have two stacks, each one containing two...
  2. Dave

    Tensor Product of Covariant and Contravariant Vectors

    I have just finished a math tensor course, it's really a lot of fun once you get going!
  3. Dave

    Preparing for Mechanics Physics: Tips for High Grades

    Make sure you understand the concepts rather than just rope learning.
  4. Dave

    An airplane flies due north at 150km/h with respect to the air

    Does it also imply it's traveling in a direction to do with the air?
  5. Dave

    What's Your Favorite Strategy Game and Why?

    C&C.. great game.. I only have a slow computer tho!
  6. Dave

    Free Energy Device: Closest Inventors Have Come?

    A superconductor. There's one that can run at 125K I think.
  7. Dave

    News Feeding the World: Ideas for Sustainable Solutions

    You get the impression the 3rd world countries don't do anything and wait for AIDS to wipe out the African nations...
  8. Dave

    Are the people encountered in time travel the same as in the present?

    Haven't you seen Back to the Future?
  9. Dave

    News Who's sick of seeing all those flags everywhere?

    We're certainlly not as patrioctic as you are over here in NZ
  10. Dave

    Laser, color and speed of light

    It does if the light is not in a vacuum.
  11. Dave

    Do we see in digital or analog?

    We see in analog but the messages are sent digitally?
  12. Dave

    Men are from MarsWomen are from Venus.

    Men and women certainly are different. However, the amount they differ is less than pop psychology would lead you to believe. There are always examples of guys being more aggressive then girls etc. But how do you define agression? I think there isn't that much differnecese between the...
  13. Dave

    Age Calculator: Find Out How Old You Are

    22. Too old and too young.
  14. Dave

    Men are from MarsWomen are from Venus.

    No, that's what psychologists called "virgin speak"
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