"Richard Clark" wrote
...
On Mon, 18 Oct 2010 20:43:42 -0500, tom wrote:
On 10/18/2010 2:37 AM, Szczepan Bialek wrote:
The vector calculus describe only movements.
Really? I did not know that.
Crap. And argh.
I thought it was more useful than that.
Who knew?
Stalin had the science writers purge their texts of those qualities
that you miss and that we enjoy here in the west (they were condemned
as bourgeois inspired perversions with counter-revolution tendencies).
Hence you find decrepit pensioners sneering at elitist propaganda
(western science) that dismisses the party-approved water models of RF
transmission. In the historical perspective, we have to remember this
state inspired instruction was learned in an era of RF transmission
jammers located in every neighborhood so that trying to hear the VOA
or the BBC made things sound like you were listening through the
breakers of the surf. Hence the "experience" of the water model was
very pervasive and arguing its falsity comes up against the resistance
of the old guard.
Always are the two descriptions. Physical (dynamic) and geometric (kinetic).
"Geometric algebra in the sense used in this article was not developed,
however, until 1844, when it was used in a systematic way to describe the
geometrical properties and transformations of a space
"Nevertheless, another revolutionary development of the 19th-century would
completely overshadow the geometric algebras: that of vector analysis,
developed independently by Josiah Willard Gibbs and Oliver Heaviside. Vector
analysis was motivated by James Clerk Maxwell's studies of electromagnetism,
" From:
http://en.wikipedia.org/wiki/Geometric_algebra
Tesla's longitudinal radio waves are also described.
For us is enough to know that the transversal are rotational. The geometric
desription of the rotational oscillations is very impressive. It must be in
the school program.
Stokes drift is also impressive. Do you know that the ink printer use it?
S*