Russian helmets: from kaska to stalshlyem, 1916-2001 by Robert Clawson

By Robert Clawson

История русского стального шлема

Show description

Read or Download Russian helmets: from kaska to stalshlyem, 1916-2001 PDF

Similar nonfiction_14 books

De Havilland Sea Vixen

This can be the second one sequence of Warpaint. This sequence was once just like the 1st, yet integrated color illustrations and coated a much wider diversity of plane varieties. The sequence specializes in army plane from the second one international struggle onwards, with an emphasis at the markings carried. every one publication incorporates a concise written historical past of the topic lined, illustrated with color and b+w images - including color profiles and color multi-view drawings.

Image-Based Multilevel Biomechanical Modeling for Fall-Induced Hip Fracture

Fall-induced hip fracture is a virulent disease healthiness hazard between aged humans. This ebook offers an image-based multilevel modeling method of figuring out the biomechanics keen on fall-induced hip fracture. via hierarchically integrating a body-level dynamics version, a femur-level finite aspect version, and a neighborhood bone failure version, the biomechanics technique is ready to simulate all phases in sideways falls and to include all biomechanical variables affecting hip fracture.

Singularities in Geometry, Topology, Foliations and Dynamics: A Celebration of the 60th Birthday of José Seade, Merida, Mexico, December 2014

This ebook positive aspects state of the art examine on singularities in geometry, topology, foliations and dynamics and offers an outline of the present kingdom of singularity concept in those settings. Singularity concept is on the crossroad of varied branches of arithmetic and technology quite often. lately there were impressive advancements, either within the concept itself and in its relatives with different parts.

Advances in Memristors, Memristive Devices and Systems

This e-book experiences at the most modern advances in and functions of memristors, memristive units and structures. It gathers 20 contributed chapters by way of topic specialists, together with pioneers within the box akin to Leon Chua (UC Berkeley, united states) and R. S. Williams (HP Labs, USA), who're really expert within the a variety of subject matters addressed during this booklet, and covers large parts of memristors and memristive units equivalent to: memristor emulators, oscillators, chaotic and hyperchaotic memristive structures, keep an eye on of memristive structures, memristor-based min-max circuits, canonic memristors, memristive-based neuromorphic functions, implementation of memristor-based chaotic oscillators, inverse memristors, linear memristor units, behind schedule memristive structures, flux-controlled memristive emulators, and so on.

Extra resources for Russian helmets: from kaska to stalshlyem, 1916-2001

Sample text

In 1904, Albert Einstein confirmed this theory with the discovery of the photo effect, which cannot be explained with classical explanatory approaches [EIN05]. 5) EM waves show frequency-dependent interactions with the surrounding matter, which make them attractive for several applications. 5 $ 1017 to 6 $ 1019 Hz (1 pme10 nm) or microwaves with frequencies from 1 to 300 GHz (1e300 mm). 2 The frequency spectrum of electromagnetic waves. X-rays are used in medical imaging, whereby microwaves are used for heating of watercontaining objects due to the fact that they are able to interact with the dipole moment of water molecules.

The phase velocity is hereby defined as the propagation velocity of a certain component of an EM wave. However, light consists of a variety of wavelengths with certain phase velocities. The EM wave appears as a superposition of waves with several frequencies and phase velocities, which we introduced as a wave package. The resulting envelope of the wave package propagates at a velocity, which is defined as the group velocity [DEM08]. We defined the refractive index as the ratio of the vacuum light velocity and the phase velocity of the wave in a particular medium.

However, as it can be studied in further literature, the quantum-based calculation and the semiclassical theory yield to similar results in many cases. The behaviour of a dipole in an electric field is shown in Fig. 10. 1 Complexity of a quantum-mechanical approach As described in the introductory chapter and discussed afterwards, Maxwell’s equations are the basis for each discussion of electrodynamic phenomena. However, the observations of Max Planck and Albert Einstein showed that a neat classical description is not sufficient in order to understand interactions between EM waves and a surrounding medium.

Download PDF sample

Rated 4.94 of 5 – based on 19 votes