allynh » Mar 8th, '09, 21:00
I found the great series from 1985, Caltech: The Mechanical Universe and Beyond, on Google.
Due to licensing agreements, online viewing of the videos for this resource is restricted to network connections in the United States and Canada
allynh wrote:Everything is Fluid Mechanics. The Aether, Plasma. etc..., is all Fluid. The Fluid Mechanics book I used in school was:
Elementary Fluid Mechanics by John K. Vennard - 5th edition - 1975
The ones available on Amazon are:
Elementary Fluid Mechanics [Paperback] ~ $29.40<----Possibly the original Edition. I don't know how useful this one is.
http://www.amazon.com/Elementary-Fluid- ... 290&sr=1-1
Elementary Fluid Mechanics, 7th Edition [Hardcover] ~ $117.67
http://www.amazon.com/Elementary-Fluid- ... _orig_subj
On ABEBooks I see several 5th editions, from 1975, for under ten bucks.
http://www.abebooks.com/servlet/SearchR ... &x=30&y=11
The 5th edition is all you need; the latest book is not necessarily the best since they are building on the original.
If you understand circuit design, then you can understand the stuff in this book.
fosborn wrote:I found a free PDF 1940 version at ; http://www.archive.org/details/elementa ... m032659mbp
University Physics, by Francis Weston Sears (1955) and Mark W. Zemansky
This is the text I used in what we called at that time “Sophomore Physics.” In 1957 it was the rule that freshmen took algebra, trig, and analytical geometry their first year, and then were prepared for calculus based physics in their sophomore year (of course taking calculus concurrently.) Oh, how I struggled with this book. My high-school science program was less than strong, far less. I was not a prepared student for physics. I had taken physics in high school but it was the worst course I’ve ever had, the way it was taught. My course in bookkeeping was far better.
Dr. Ted George was my instructor at Murray State College (now Murray State University.) He was a masterful teacher, and I was able to do excellent work in the first semester. The second semester of physics, the electricity and magnetism part, threw me for a loop. Dr. George allowed me to retake a test on which I had done miserably. I studied extremely hard, and finally got myself organized in a way to understand the way one thinks in physics. As a result I did go on to do well in the course – then, in my junior year, changed my major from pre-engineering to majors in physics and mathematics.
Looking at the evolution of physics texts since I took it in 1956-57 I am astounded. There was the Berkeley Series of 5 or so volumes. Halliday and Resnick developed an excellent text that eventually bloomed also into a multivolume version. The Feynman Lectures was an extraordinary achievement and a total failure as an instructional text. I used those volumes to prepare for my doctoral prelims.
I won’t forget this red book, smaller, I think, than World Without End. It had all the elements of classical physics in it. It had an excellent set of problems for student solutions. The diagrams were simple, but effective.
I don’t know if we have done well for our students by developing larger and larger (and outrageously expensive) books. Some of the best books in physics are not so large. I think of Herbert Goldstein’s Classical Mechanics, or Quantum Mechanics by Leonard Schiff. I’ve kept my first version of Fundamentals of Physics. It’s a one-volume edition, and gives me all the information I need when I need to look up something. If I still had my original edition of Sears and Zemansky, I’m sure it would have sufficed as well. I am not convinced that elaborate multi-colored diagrams and high-resolution photographs add all that much to the student’s learning.
Sears, Francis Weston (1955) and Mark W. Zemansky. University Physics. Cambridge, MA: Addison-Wesley. LOC: 55005026
Atomic orbitals show the electron density for an electron of a given energy. Plotting these electron densities in three dimensions gives the shapes representing the various atomic orbitals. The subset of atomic orbitals visualized are 1s, 2p, 3d and 4f.
The real forms of atomic orbitals are constructed by taking appropriate linear combinations of the complex forms of these orbitals. The one-electron wavefunctions resulting from the solution of the Schrödinger equation for the hydrogen atom are complex functions except when . Boundary surface pictures of atomic orbitals typically only show the real part of these complex functions and often leave out the sign information as well. Here, boundary surfaces of the orbitals are drawn with coloring to indicate the real and imaginary components as well as the positive and negative signs. These color-coded atomic orbitals illustrate the linear combinations of the complex wavefunctions that produce the familiar and orbitals.
Chemistry students encountering atomic orbitals for the first time often wonder why the orbital looks so different from the others. The answer is related to the fact that boundary surface pictures of atomic orbitals typically show only the real part of these complex functions and often leave out the sign information as well. The one-electron wavefunctions resulting from the solution of the Schrödinger equation for the hydrogen atom are complex functions except when . The real forms of atomic orbitals can be constructed by taking appropriate linear combinations of the complex forms. Here, boundary surfaces of the orbitals are colored to indicate the real and imaginary components as well as the positive and negative signs. These color-coded atomic orbitals illustrate the linear combinations of the complex wavefunctions that result in the familiar four-lobe pictures.
It is less common to find the atomic orbitals illustrated in chemistry textbooks than the , , and orbitals. Boundary surface pictures of any of these atomic orbitals typically only show the real part of these complex functions and often leave out the sign information as well. The one-electron wavefunctions resulting from the solution of the Schrödinger equation for the hydrogen atom are complex functions except when . The real forms of atomic orbitals can be constructed by taking appropriate linear combinations of the complex forms. Here, boundary surfaces of the orbitals are colored to indicate the real and imaginary components as well as the positive and negative signs.
Equiprobability surfaces for hydrogen orbitals correspond to the wavefunctions . Here is the principal quantum number, is the total angular momentum quantum number, and is the magnetic quantum number. Hydrogen orbitals are covered in a first-year quantum mechanics course. The pictures presented are typically ambiguous in what they display. The proper way is to show equiprobability surfaces.
Legendre polynomials are solutions to the Legendre differential equation, which is a form of Laplace's equation in spherical coordinates. These forms commonly occur in antenna patterns and electron orbitals, among others.
Comet 17P/Holmes has had a history of producing outbursts of activity; the exact cause is still unknown. Regardless of the cause, the result is that the coma of the comet expands as fresh dust is released from the comet nucleus. Snapshot 1 shows a large coma, a short tail, and an orientation that closely matches that of the comet when it underwent its most recent outburst.
Since prehistoric times, mankind has known about the bright object in the sky that is visible even when the Sun has risen: our Moon. However, in much more recent times we have discovered a second object, 3753 Cruithne (1986 TO), that orbits the Sun in almost exactly the same period as Earth and comes fairly close to Earth. The result of this odd set of circumstances is that, at least from certain points of view, it seems Earth has a second moon with a kidney-bean shaped orbit.
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