Recent content by Watts

  1. W

    Is Switching from Nuclear to Aerospace the Right Career Move?

    I have a question concerning a career move. I have a chance to switch from the nuclear industry to the aerospace industry. I am just wondering if this is smart or not. Based on the current events taking place in the world and the concern and threat of individuals acquiring and transporting...
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    Could someone explain undulation per revolution?

    Could someone explain undulation per revolution? I would prefer to have a mathematical function defining it also if possible. Can any explain ONE also? .
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    Graduate How to Estimate the Intrinsic Distribution

    Poor Terminology Hurkyl I am sorry for the incorrect usage of the terminology mean and variance. The statement should have read the mean and variance can be estimated from the sample mean and variance. That was my intent of this posting was to have things like that brought to my attention...
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    High School Understanding Random Numbers in Physics

    Link Please see the link below. http://web.utk.edu/~rpevey/NE582/lesson3.htm
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    Graduate How to Estimate the Intrinsic Distribution

    Thoughts No- The sample mean and variance are only estimates of the distributions mean and variance.
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    Graduate How to Estimate the Intrinsic Distribution

    The following is crude derivation demonstrating how a distribution such as the normal distribution is simply one distribution that stems from a family of similar distributions. I originally was going to post this in the new Independent Research forum but the moderator thought it was...
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    High School Want to learn about time series/forecasting

    Info Try http://www.public.iastate.edu/~wqmeeker/stat451stuff/pdf_psnups/handout08_psnup.pdf#search='SARIMA%20time%20series' http://www.unc.edu/~eghysels/papers/Handbook_final.pdf#search='SARIMA%20time%20series' http://www.ltrr.arizona.edu/~dmeko/notes_6.pdf#search='periodogram' A...
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    Prometheus Woes: 150 Employees Left in Limbo After NASA Program Termination

    It hits home My current employer was scheduled this year to start building a prototype manufacturing facility for this fuel. It was high hopes for us.
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    What Are the Best Career Opportunities for Physics Graduates?

    Making Money
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    Careers in Physics: Relativity & Astronomy

    Education I think the first question I would ask my self is. What level of education I would be willing to pursue? Speaking from experience your decision is subject to change without notice over time.
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    Graduate Normalizing a PDF: f(x) = e^{ - x^2 }

    Hurkyl I see your point but either method reduces the unnormalized density function the same proportion of area to equal 1. If this occurs why doesn’t it preserve proportionality? In sense when you multiple by the reciprocal of area the functions height it is reduced by some quantity at the...
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    Undergrad Apply Fourier Transform to Scanning Results of Metal of Length L

    Signal Decomposition If you just look at the signals spectrum it will hard to distinguish between harmonics from the noise and signal. Signals can be decomposed into typical two components. They are others but they are immaterial to this purpose. You can smooth a signal by using a moving...
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    Undergrad Apply Fourier Transform to Scanning Results of Metal of Length L

    Data Points I would try to obtain more data points if possible (50 minimum). Especially since you are trying to analyze noise. I would also suggest taking the magnitude of the Fourier components (Periodogram) instead of using a FFT. A(f) = \frac{2}{N} \cdot \sum\limits_{t = 0}^{n - 1} {x_t...
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    Graduate Normalizing a PDF: f(x) = e^{ - x^2 }

    Method Meaning the PDF (1st or 2nd) that contours to the distribution of my data the best.
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    Graduate What is the Damping Term of a Photon?

    Intensity I is the intensity.