Auf dem Holzweg durchs Universum: Warum sich die Physik - download pdf or read online

By Alexander Unzicker

In der Physik herrschen scheinbar goldene Zeiten. Raumsonden erforschen den Kosmos, Teilchenbeschleuniger den Urknall. Doch keine Disziplin treibt so seltsame Blüten: Spekulationen über Paralleluniversen etwa oder die String-Theorie, die mit Wissenschaft nicht mehr viel zu tun haben. Gleichzeitig sind grundlegende Fragen der Physik wie die nach der Masse noch immer unbeantwortet. Doch statt Lösungsansätze von Einstein oder Dirac aufzugreifen, verwendet guy lieber Milliarden auf die Suche nach neuen Teilchen und mutmaßt über verborgene Dimensionen. Alexander Unzicker liest der Physik die Leviten - und weist ihr den Weg aus dem Labyrinth, in dem sie sich verlaufen hat. Seine fundierte und packende examine beweist, dass die derzeitigen Theorien dem Kosmos mit seinen unendlichen Weiten nicht gerecht werden. "Unzicker ist ein naturwissenschaftlicher Ketzer. Und das meine ich als Kompliment!" Vince Ebert, Wissenschaftskabarettist

Show description

Read Online or Download Auf dem Holzweg durchs Universum: Warum sich die Physik verlaufen hat PDF

Best science books

Head and Neck Surgery - Otolaryngology by Norman Friedman, Byron J. Bailey, Karen H. Calhoun, Craig S. PDF

Newly revised and up to date, this entire, easy-to-use two-volume otolaryngology textual content is now in its 3rd version. New chapters that mirror advances within the box are incorporated during this concisely written reference, together with sphenoid sinus illness, complicated top airway difficulties, laryngeal pappillomatosis, congenital vascular lesions, high-tech surgical advances, substitute medication, laser-skin resurfacing, and administration of N-zero and N-one.

Download PDF by Wang Ning, Chunmao Li, Jin Zhou, Junfeng Zhu (auth.),: Recent Advances in Computer Science and Information

CSIE 2011 is a world medical Congress for wonderful students engaged in medical, engineering and technological study, devoted to construct a platform for exploring and discussing the way forward for machine technology and data Engineering with present and capability software eventualities.

Extra resources for Auf dem Holzweg durchs Universum: Warum sich die Physik verlaufen hat

Example text

Often the laser designer will start with a specification which includes the desired power and beam-quality (together with current window capabilities, if d1ey are a potential "weak link") and will proceed from there to assess possible geometries, and cooling implications. Somewhere along the line the electrical pump-specification (and any pre-ionization needs) will emerge! As an illustration of the iteration which may be required the reader is referred back to Table 2, where the (deliberately conservative) fan-power requirements quoted are a consequence of the high pulse-rate envisaged for some of these 1 kW nominal-output (research) lasers.

89. 08). This reason strongly supports the fact that amplitude aberrations weakly affect the luminous intensity. It means that Strehl ratio may be applied without serious limitations. Optical homogeneity criteria discussed above are used as a rule to describe the light propagation through the large scale inhomogeneities appearance of wich in the active medium results in decreasing of centerline intensity and increasing of second diffraction orders. Small scale random disturbance lead to the wide angle scattering that can be described by "plato" on the far field intensity distribution diagram [10].

However it is not always true as the random nonuniformities have a small scale unsteady pattern and are very difficult to correct. As a rule the spatial scale of random inhomogeneities is comparable with Frenehl's zone size. Gas flow turbulence is one of the main gasdynanlic processes leading to random inhomogeneities. 5 10 5 51 The example of G D L active medium interferograms at laminar and turbulent flow conditions are shown in the Figurel. a b Figure 1. GDL active medium interferograms without (a) and with (b) turbulence in the flow.

Download PDF sample

Auf dem Holzweg durchs Universum: Warum sich die Physik verlaufen hat by Alexander Unzicker


by David
4.2

Rated 4.85 of 5 – based on 21 votes