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This book traces the development of Kepler's ideas along with his
unsteady wanderings in a world dominated by religious turmoil.
Johannes Kepler, like Galileo, was a supporter of the Copernican
heliocentric world model. From an early stage, his principal
objective was to discover "the world behind the world", i.e. to
identify the underlying order and the secrets that make the world
function as it does: the hidden world harmony. Kepler was driven
both by his religious belief and Greek mysticism, which he found in
ancient mathematics. His urge to find a construct encompassing the
harmony of every possible aspect of the world - including
astronomy, geometry and music - is seen as a manifestation of a
deep human desire to bring order to the apparent chaos surrounding
our existence. This desire continues to this day as we search for a
theory that will finally unify and harmonise the forces of nature.
Wireless communications have become indispensable part of our
lives. The book deals with the security of such wireless
communication. The technological background of these applications
have been presented in detail. Special emphasis has been laid on
the IEEE 802.11x-standards that have been developed for this
technology. A major part of the book is devoted to security risks,
encryption and authentication. Checklists have been provided to
help IT administrators and security officers to achieve the maximum
possible security in their installations, when using wireless
technology. This is the second edition of the book. The updates
include the latest the IEEE 802.11-standard, an updated chapter on
PDA, the increased relevance of smart phones and tablets,
widespread use of WLAN with increased security risks.
This textbook introduces energy utilisation. It outlines energy
balances - which are determined by the fundamental laws of
thermodynamics-, the fundamentals of atomic and nuclear mechanisms,
the laws of fluid mechanics and electromagnetism. The technologies
which stem from these mechanisms, including steam power plants,
solar and wind energy systems, hydrodynamic power, biomass and
geothermal energy systems, are all discussed. Prospects for future
projects, such as nuclear fusion, fuel cells, and smart energy
concepts are presented, as well as the role of energy balances in
relation to climate engineering. Opportunities and Limits of Energy
Utilisation will be of interest to graduate students, as well as
researchers, lecturers, industry engineers. It provides numerous
examples, problems and solutions, making it particularly relevant
to students looking for a thorough understanding of the
fundamentals of advanced energy technologies.
Seit Beginn dessen, was man Philosophie nennt – also dem
Zeitalter der Vorsokratiker – haben große Geister sich bemüht,
den Dualismus Geist-Materie zu überwinden und Erkenntnis auf eine
einzige, eindeutige Quelle zurück zu führen – dem Ding-an-sich.
Diese Entwicklung wird in diesem Buch nachverfolgt – bis hin zu
den modernen Instrumenten der Datenhaltung und der künstlichen
Intelligenz. Im Internet of Things schließlich werden
Informationen und Objekte wieder zu einer einzigen Entität
verschmolzen. Liegt da vielleicht die Lösung nach der Suche des
Ding-an-sich?
This textbook introduces energy utilisation. It outlines energy
balances - which are determined by the fundamental laws of
thermodynamics-, the fundamentals of atomic and nuclear mechanisms,
the laws of fluid mechanics and electromagnetism. The technologies
which stem from these mechanisms, including steam power plants,
solar and wind energy systems, hydrodynamic power, biomass and
geothermal energy systems, are all discussed. Prospects for future
projects, such as nuclear fusion, fuel cells, and smart energy
concepts are presented, as well as the role of energy balances in
relation to climate engineering. Opportunities and Limits of Energy
Utilisation will be of interest to graduate students, as well as
researchers, lecturers, industry engineers. It provides numerous
examples, problems and solutions, making it particularly relevant
to students looking for a thorough understanding of the
fundamentals of advanced energy technologies.
This book traces the development of Kepler's ideas along with his
unsteady wanderings in a world dominated by religious turmoil.
Johannes Kepler, like Galileo, was a supporter of the Copernican
heliocentric world model. From an early stage, his principal
objective was to discover "the world behind the world", i.e. to
identify the underlying order and the secrets that make the world
function as it does: the hidden world harmony. Kepler was driven
both by his religious belief and Greek mysticism, which he found in
ancient mathematics. His urge to find a construct encompassing the
harmony of every possible aspect of the world - including
astronomy, geometry and music - is seen as a manifestation of a
deep human desire to bring order to the apparent chaos surrounding
our existence. This desire continues to this day as we search for a
theory that will finally unify and harmonise the forces of nature.
Wireless communications have become indispensable part of our
lives. The book deals with the security of such wireless
communication. The technological background of these applications
have been presented in detail. Special emphasis has been laid on
the IEEE 802.11x-standards that have been developed for this
technology. A major part of the book is devoted to security risks,
encryption and authentication. Checklists have been provided to
help IT administrators and security officers to achieve the maximum
possible security in their installations, when using wireless
technology. This is the second edition of the book. The updates
include the latest the IEEE 802.11-standard, an updated chapter on
PDA, the increased relevance of smart phones and tablets,
widespread use of WLAN with increased security risks.
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