Relativistische Geschwindigkeitsaddition

BluePhoenix · Anmeldungsdatum: 21.11.2004 Beiträge: 102 Wohnort: Erftstadt

Hiho Leude,
also ich mache grad Praktikum annem Inst. f. Theo. Phys. (ja ich mag abkzg. ^^) und befasse mich dabei mit der SRT von Einstein. So nun habe ich die die Formeln etc. von der Geschwindigkeitsaddition zwar einigermassen verstanden aber ich verstehe die Logik dahinter nicht, was mit der Energie passiert die ja verloren geht... Beispiel: wenn man 1/2 c fliegt und ein Geschoss mit 1/2c von sich wegschiesst hat dies am Ende nicht die Geschwindigkeit1c sondern 0.8c. Mathematisch kann ichs ja sehen aber irgendwie versteh ich die Logik dahinter noch nicht so ganz...es muesste ja Energie verloren gehen oder taeusche ich mich?...bitte helft mir Hilfe

navajo · Moderator Anmeldungsdatum: 12.03.2004 Beiträge: 618 Wohnort: Bielefeld

Huhu,

Du hast ja nun zwischendurch das Bezugssystem gewechselt, weil du ja halt eine Lorentztransformation gemacht hast. Beim Wechsel des Bezugssystems ist die Energie aber nicht erhalten. Das kommt nun nicht erst durch die SRT, das ist auch schon klassisch so.

BluePhoenix · Anmeldungsdatum: 21.11.2004 Beiträge: 102 Wohnort: Erftstadt

aaaaaaaaaaaahhhhhhhh klar Hammer

man demnaechst guckich besser erstnochmal wassich mir vorher notiert hatte bevor ich so dumme fragen stell LOL Hammer

...aber danke! Prost

Socratus. · Gast

100 years of Einstein's SRT.
100 years have passed from the date of creation of SRT.
Millions of articles, reviews and books have been written and the
United Nations has decided to establish 2005 as the centennial year of SRT.
Considering all that is clear in this theory, one must still
continue to be surprised by its unusual aspects
Lets review it again:
1. SRT is based on two postulates:
a) According to classical mechanics, physical processes,
which occur in rest or in a rectilinearly driven reference system
are described under the same laws.
b) The rectilinear - uniform propagation of a quantum of light (c=1) in vacuo
has a constant magnitude and does not depend on the source of radiation.
These two postulates would be proven if in the final analysis, they corresponded
with Galilean transformations. However, the result appears negative.
Galilean transformations do not unite these two theories. Why?
2. The rectilinear - uniform motion of a quantum of light (c=1) is connected with
Maxwell's classical electrodynamics. SRT has grown from Maxwell's electrodynamics
and main component in it is the electron.
What describes the electron in Maxwell's electrodynamics?
It is natural, that this electron should be in motion, but it does not move rectilinearly.
It rotates around its own diameter ( spin of Goudsmit-Uhlenbeck)
and such a rotation creates electrical waves. In such rotation all geometrical
and physical parameters of the electron are changed.
It is for this reason Einstein utilized the Lorentz transformations.
And all that is sensible in SRT is that it examines two completely
different types of movement: rectilinear (quantum of light c=1)
and rotational (Maxwell's electron).
It examines the transformation of the electron into a quantum of light (photon)
or quantum of light into an electron .
3. According to classical electrodynamics, an electron in rectilinear motion
does not create electrical waves. Why?
Because the electron travels as a quantum of light (c=1).
In such movement its geometrical form is a circle.
In such movement its area of contact with the vacuum is minimal
and it is not capable of changing the uniformity of the vacuum.
4. When the electron rotates around its own diameter, its speed is more
than the rectilinear motion of a quantum of light. Its speed is c > 1.
For this reason physicists ascribe a huge frequency
to the electron which is the reason its energy E =ħw is higher.
* * *
If you have time and desire, I ask you to visit my site
http://www.socratus.com
Best regards.
Socratus.