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Books > Science & Mathematics > Physics > General
This book is based on a commitment to teaching science to
everybody. What may work for training professional scientists does
not work for general science education. Students bring to the
classrooms preconceived attitudes, as well as the emotional baggage
called ""science anxiety."" Students may regard science as cold,
unfriendly, and even inherently hostile and biased against women.
This book has been designed to deal with each of these issues and
results from research in both Denmark and the United States. The
first chapter discusses student attitudes towards science and the
second discusses science anxiety. The connection between the two is
discussed before the introduction of constructivism as a pedagogy
that can aid science learning if it also addresses attitudes and
anxieties. Much of the book elucidates what the authors have
learned as science teachers and science education researchers. They
studied various groups including university students majoring in
the sciences, mathematics, humanities, social sciences, business,
nursing, and education; high school students; teachers' seminary
students; science teachers at all levels from middle school through
college; and science administrators. The insights of these groups
constitute the most important feature of the book, and by sharing
them, the authors hope to help their fellow science teachers to
understand student attitudes about science, to recognize the
connections between these and science anxiety, and to see how a
pedagogy that takes these into account can improve science
learning.
Developed for the new International A Level specification, these
new resources are specifically designed for international students,
with a strong focus on progression, recognition and transferable
skills, allowing learning in a local context to a global standard.
Recognised by universities worldwide and fully comparable to UK
reformed GCE A levels. Supports a modular approach, in line with
the specification. Appropriate international content puts learning
in a real-world context, to a global standard, making it engaging
and relevant for all learners. Reviewed by a language specialist to
ensure materials are written in a clear and accessible style. The
embedded transferable skills, needed for progression to higher
education and employment, are signposted so students understand
what skills they are developing and therefore go on to use these
skills more effectively in the future. Exam practice provides
opportunities to assess understanding and progress, so students can
make the best progress they can.
This book outlines the principles of thermoelectric generation and
refrigeration from the discovery of the Seebeck and Peltier effects
in the nineteenth century through the introduction of semiconductor
thermoelements in the mid-twentieth century to the more recent
development of nanostructured materials. It is shown that the
efficiency of a thermoelectric generator and the coefficient of
performance of a thermoelectric refrigerator can be related to a
quantity known as the figure of merit. The figure of merit depends
on the Seebeck coefficient and the ratio of the electrical to
thermal conductivity. It is shown that expressions for these
parameters can be derived from the band theory of solids. The
conditions for favourable electronic properties are discussed. The
methods for selecting materials with a low lattice thermal
conductivity are outlined and the ways in which the scattering of
phonons can be enhanced are described. The application of these
principles is demonstrated for specific materials including the
bismuth telluride alloys, bismuth antimony, alloys based on lead
telluride, silicon-germanium and materials described as
phonon-glass electron-crystals. It is shown that there can be
advantages in using the less familiar transverse thermoelectric
effects and the transverse thermomagnetic effects. Finally,
practical aspects of thermoelectric generation and refrigeration
are discussed. The book is aimed at readers who do not have a
specialised knowledge of solid state physics.
The Handbook on the Physics and Chemistry of Rare Earths is a
continuous series of books covering all aspects of rare earth
science - chemistry, life sciences, materials science, and physics.
The main emphasis of the Handbook is on rare earth elements [Sc, Y
and the lanthanides (La through Lu)] but whenever relevant,
information is also included on the closely related actinide
elements. The individual chapters are comprehensive, broad,
up-to-date critical reviews written by highly experienced invited
experts. The series, which was started in 1978 by Professor Karl A.
Gschneidner Jr., combines and integrates both the fundamentals and
applications of these elements and now publishes two volumes a
year.
Quantum mechanics is one of the most fascinating, and at the
same time most controversial, branches of contemporary science.
Disputes have accompanied this science since its birth and have not
ceased to this day.
"Uncommon Paths in Quantum Physics" allows the reader to
contemplate deeply some ideas and methods that are seldom met in
the contemporary literature. Instead of widespread recipes of
mathematical physics, based on the solutions of
integro-differential equations, the book follows logical and partly
intuitional derivations of non-commutative algebra. Readers can
directly penetrate the abstract world of quantum mechanics.
First book in the market that treats this newly developed area of
theoretical physics; the book will thus provide a fascinating
overview of the prospective applications of this area, strongly
founded on the theories and methods that it describes.Provides a
solid foundation for the application of quantum theory to current
physical problems arising in the interpretation of molecular
spectra and important effects in quantum field theory.New insight
into the physics of anharmonic vibrations, more feasible
calculations with improved precision.
This book uses a hands-on approach to nonlinear dynamics using
commonly available software, including the free dynamical systems
software Xppaut, Matlab (or its free cousin, Octave) and the Maple
symbolic algebra system. Detailed instructions for various common
procedures, including bifurcation analysis using the version of
AUTO embedded in Xppaut, are provided. This book also provides a
survey that can be taught in a single academic term covering a
greater variety of dynamical systems (discrete versus continuous
time, finite versus infinite-dimensional, dissipative versus
conservative) than is normally seen in introductory texts.
Numerical computation and linear stability analysis are used as
unifying themes throughout the book. Despite the emphasis on
computer calculations, theory is not neglected, and fundamental
concepts from the field of nonlinear dynamics such as solution maps
and invariant manifolds are presented.
This book provides readers with up-to-date coverage of fault
location algorithms in transmission and distribution networks. The
algorithms will help readers track down the exact location of a
fault in the shortest possible time. Furthermore, voltage and
current waveforms recorded by digital relays, digital fault
recorders, and other intelligent electronic devices contain a
wealth of information. Knowledge gained from analysing the fault
data can help system operators understand what happened, why it
happened and how it can be prevented from happening again. The book
will help readers convert such raw data into useful information and
improve power system performance and reliability.
Replication, the independent confirmation of experimental results
and conclusions, is regarded as the "gold standard" in science.
This book examines the question of successful or failed
replications and demonstrates that that question is not always easy
to answer. It presents clear examples of successful replications,
the discoveries of the Higgs boson and of gravity waves. Failed
replications include early experiments on the Fifth Force, a
proposed modification of Newton's Law of universal gravitation, and
the measurements of "G," the constant in that law. Other case
studies illustrate some of the difficulties and complexities in
deciding whether a replication is successful or failed. It also
discusses how that question has been answered. These studies
include the "discovery" of the pentaquark in the early 2000s and
the continuing search for neutrinoless double beta decay. It argues
that although successful replication is the goal of scientific
experimentation, it is not always easily achieved.
Hulchul: The Common Ingredient of MotionMotionMotionMotion and Time
Author, Sohan Jain, proposes the following in the book: Instants of
Motion, Instants of Time and Time Outage: Just as time has instants
of time, motion has instants of motion, too. Instants of time and
motion can be divided into three classes: pure instants of time,
pure instants of motion, and composite instants of time and motion.
The sequences of the three types of instants are interspersed into
a single sequence of their occurrences. A body does not experience
time during pure instants of motion, a phenomenon we will call time
outage -the cause of time dilation. Time outage is not continuous;
it is intermittent. Internal and external motion of a body and
their inheritance: Each body has, generally, two kinds of motions:
internal motion and external motion. A body goes, wherever its
outer bodies go. An inner body inherits external motion of its
outer bodies. An outer body inherits internal motion of its inner
bodies. Photons and light do not inherit motion; may be, this is
why their motions are independent of their sources. Prime ticks,
the building blocks of time and any motion: Motion of a common body
is not continuous; it is intermittent. Any kind of motion is
perceived to be made of discrete, indivisible tiny movements,
called prime ticks (p-ticks). P-ticks are to motion what elementary
particles are to matter or what photons are to light. There is time
only because there is motion. Prime ticks are events and imply
motion. Events have concurrency, which implies time. Total
concurrency hulchul, a universal constant: Concurrency events of
external and internal p-ticks of a body are precisely the instants
of motion and time. The sum of the two is called the total
concurrency hulchul (c-hulchul). Total c-hulchul is the same for
all bodies. The proposed theory possibly explains: Why a particle
accelerator works. Why atoms have compartmentalized internal
structure. Why lighter bodies, such as elementary particles and
photons, have wavy straight motion rather than straight motion. The
theory predicts: The sharing of an electron by two atoms is not
continuous; it alternates between the two atoms.
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