Recent content by Oblio

  1. O

    Graduate What caused the Big Bang to happen?

    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.
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    Physics What Are Some Field Work Careers in Physics?

    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!
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    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

    Circuit analysis problems 18 and 24 from Brock physics assignment

    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 :)
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    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...
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    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...
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    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]
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    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?
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    Graduate 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

    Graduate Vector product - operator's a vector?

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