Recent content by Oblio

  1. O

    The Cause of the Big Bang: Proven Theories

    This is one of those places where science enters the faith realm, which is why it's fun to talk about. Really, all the ideas and theories place a 'creator' as the initial cause. I've read some really 'fluffy' papers where the author was going with some kind of eternal grouping of energy that...
  2. O

    Gorillas should be America's professional football players

    Not a lot of athletes at this forum it seems. I'm an athlete and I like physics, those with an 'athlete-bashing' attitude are only proving your own ignorance of the issue.
  3. O

    Physics Physics careers with Field Work

    Hey everybody, I've been doing a little research, looking for jobs in physics with field work (or even are only field work / outdoors work). The only thing I've come across so far is Marine and ocean Physics. Anyone else know of others? Thanks!
  4. O

    Are there microprocessors that support Linux or Windows for controlling lights?

    Hey all, I have a few questions concerning computers for a project I'm working on... I know a significant amount of electronics but not so much on the computer end... Anyways, say I wanted the simple application of controling a light (an LED for example) with my computer - what's the...
  5. O

    A few questions about computer applications and microprocessors

    Hey everyone, I have a few questions concerning computers, I know a significant amount of electronics but not so much on the computer end... Anyways, say I wanted the simple application of controling a light (an LED for example) with my computer - what's the easiest way to wire-in or...
  6. O

    Two electrical Problems I'm stuck on

    hey guys, I'm not sure how to start these off. Can someone give me a hint? I'm not sure how else to show these (they have circuit pictures). The questions are numbers 18 & 24 here http://www.physics.brocku.ca/Courses/2P31/DH-Asst1.pdf . thanks in advance :)
  7. O

    Digital Electronics Project - Sound detection

    it seems, not many inputs would be able to remain perfectly steady... perhaps something like a schmidt trigger would allow intant digitization? (pretty sure I am making up words lol)
  8. O

    Digital Electronics Project - Sound detection

    Ok. do you think my idea for 'value obtaining' is a valid one?
  9. O

    Digital Electronics Project - Sound detection

    By 'sample and hold' I assume you mean the digitized wave? I was wondering if I might be able to avoid that whole process by taking values of the wave at specific times... 'what is the value... NOW... NOW... and then comparing numeric values'. ... and I don't know what an anti-alias...
  10. O

    Digital Electronics Project - Sound detection

    Greetings all, I thought I'd post my idea and plan for my digital electronics project here to see if I can get any tips or meet people who may have some expertise on this subject... The basic idea is a 'lock' that is opened by the correct series of input notes. Using a PIC, what I'm...
  11. O

    How Do I Solve Part B of the Lennard-Jones Potential Problem?

    I'm getting the ridiculous value of : r = \sqrt[6]{\frac{-12B}{6A}} by deriving the two quotients, allowing A' and B' to cancel in the process (constants) cancelling out the high denominators as much as possible... etc..
  12. O

    How Do I Solve Part B of the Lennard-Jones Potential Problem?

    can i ignore E since its a constant? I got something like, [tex] x = /frac{-6r^6A + 12B}{2r^13} t^2 [\tex]
  13. O

    How Do I Solve Part B of the Lennard-Jones Potential Problem?

    I'm really stuck on b.) of this question. http://www.physics.brocku.ca/Courses/2P20/problems/prob_lenardjones.pdf I think I can use T = E - U, and solve for v from within T and integrate for x... but what do I do with E?
  14. O

    Vector product - operator's a vector?

    this post can probably be disregarded unless people with a classical mechanics context can answer my question, and not a purely mathematical one; which would probably mean very little to me.
  15. O

    Vector product - operator's a vector?

    This got moved I see? Yet its from my classical mechanics class. lol
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