I generally enjoy both the postings and links provided by John Denker. But,
time for a mild scolding. In the plots in the links below the axes are not
labeled in many cases. In some cases I can guess the axes. In other cases I
have to read the prose first to figure it out since the caption doesn't
explain it.
Like many people, I glance over the figures first to see what catches my
eye then decide to read the full prose. So, John, before I share these
websites with my students (which I plan to do) please put axes labels on
(and units when reasonable).
For example, section 10-4 is especially interesting for the current
discussion, may be assume C degrees (even the prose doesn't say so) or is
it Rankine degrees? :-)
Anyway, it would be much easier to use if it made more sense at first
glance.
Real data has fluctuations. It’s the nature of the beast. If you’ve
only got two or three data points, a large amount of noise can be
fatal ... but if you’ve got hundreds or thousands of data points,
you can tolerate quite a bit of noise, and still reach valid
conclusions, if you analyze things properly.
- - - -
John E. Sohl, Ph.D.
Professor of Physics
Weber State University
1415 Edvalson St., Dept 2508
Ogden, UT 84408-2508