Physics in a New Era: An Overview is the culmination of the National
Research Council survey series Physics in a New Era. The survey was proposed
by the Board on Physics and Astronomy, continuing the tradition of
periodic reviews of physics by the National Research Council. The overview
is the final volume of the survey and was welcomed and supported by
the Department of Energy, the National Science Foundation, and the National
Aeronautics and Space Administration.
Light is just one portion of the various electromagnetic waves flying
through space. The electromagnetic spectrum covers an extremely broad range,
from radio waves with wavelengths of a meter or more, down to x-rays with
wavelengths of less than a billionth of a meter. Optical radiation lies between
radio waves and x-rays on the spectrum, exhibiting a unique mix of ray, wave,
and quantum properties.
Nanotechnologies have already attracted massive interest in multiple fields of science and industry. In the past decades, we have witnessed the progress in micro-level experimental techniques that revolutionize the material science. Designing new materials based on the knowledge of mechanics of their building blocks and microstructure manipulations at nanometer scale have become a reality. Nanoindentation, as a leading micro-level mechanical testing technique, has attracted wide attention in numerous research fields and applications....
To see the world as a web of information is a recent view. Humanity has contemplated
the source and character of our knowledge since the dawn of time, but the
present technologically oriented civilization demands a more concrete concept.
Knowledge has been replaced by information. The information has to be carried
by physical objects, and these are described by the theories of physics. Thus, we
have to develop a theory for information coded in physical objects.
Long ago, scientists developed formal descriptions of classical information
transfer and its manipulation.
This book intends to fill the gap in the literature of mobile robots by
containing, in a single reference, complete graphically presented infor-
mation on the mechanics of a mobile robot. It is written in laymen’s lan-
guage and filled with sketches so novices and those not trained in
mechanical engineering can acquire some understanding of this interest-
ing field. It also includes clever schemes and mechanisms that mid-level
mechanical engineers should find new and useful.