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Books > Science & Mathematics > Astronomy, space & time
The extraordinary life of Bernard Lovell began before the First
World War and his story encompasses many of the great events of
last hundred years: the Second World War, the invention of radio
astronomy, the space race, the Moon landings, the exploration of
the Solar System, the Cold War, the Cuban missile crisis and the
defence of Britain against nuclear attack. It can now be revealed
that he was also a spy. "He ranks as one of the great visionary
leaders of science," Martin Rees, the Astronomer Royal, said of
him. The great radio telescope which Lovell built became and
remains one of the most important scientific instruments in the
World. The Jodrell Bank Observatory and the Lovell Telescope have
held their place at the frontier of research for fifty five years.
This book seeks to explore succinctly and accessibly Lovell's life
and achievements in the scientific and political context of the
time. His legacy remains great, as can be seen from the extensive
media coverage and personal tributes that his death in 2012
attracted all over the world. With the seventieth anniversaries of
many wartime events in which he played a crucial role, as well as
the recent declassification of information relating to his
activities as an agent in the Cold War, this biography is sure to
have a broad and timely interest.
This is the ideal resource for beginners and experienced stargazers
in the United States and Canada, and has been updated to include
new and practical information covering events occurring in North
America's night sky throughout 2021. This practical guide is both
an easy introduction to astronomy and a useful reference for
seasoned stargazers. Now includes a section on comets and a map of
the moon. Designed specifically for North America. Written and
illustrated by astronomical experts, Storm Dunlop and Wil Tirion,
and approved by the astronomers of the Royal Observatory Greenwich.
Content includes: * Advice on where to start looking. * Easy-to-use
star maps for each month with descriptions of what to see. *
Positions of the moon and visible planets. * Details of objects and
events in 2021. * Now in three editions: Britain and Ireland; North
America; Southern Hemisphere.
The book focuses on the study of the temporal behavior of complex
many-particle systems. The phenomenon of time and its role in the
temporal evolution of complex systems is a remaining mystery. The
book presents the necessity of the interdisciplinary point of view
regarding on the phenomenon of time.The aim of the present study is
to summarize and formulate in a concise but clear form the trends
and approaches to the concept of time from a broad
interdisciplinary perspective exposing tersely the complementary
approaches and theories of time in the context of thermodynamics,
statistical physics, cosmology, theory of information, biology and
biophysics, including the problem of time and aging. Various
approaches to the problem show that time is an extraordinarily
interdisciplinary and multifaceted underlying notion which plays an
extremely important role in various natural complex processes.
On Earth, lakes provide favorable environments for the development
of life and its preservation as fossils. They are extremely
sensitive to climate fluctuations and to conditions within their
watersheds. As such, lakes are unique markers of the impact of
environmental changes. Past and current missions have now
demonstrated that water once flowed at the surface of Mars early in
its history. Evidence of ancient ponding has been uncovered at
scales ranging from a few kilometers to possibly that of the Arctic
ocean. Whether life existed on Mars is still unknown; upcoming
missions may find critical evidence to address this question in
ancient lakebeds as clues about Mars' climate evolution and its
habitability potential are still preserved in their sedimentary
record. Lakes on Mars is the first review on this subject. It is
written by leading planetary scientists who have dedicated their
careers to searching and exploring the questions of water, lakes,
and oceans on Mars through their involvement in planetary
exploration, and the analysis of orbital and ground data beginning
with Viking up to the most recent missions. In thirteen chapters,
Lakes on Mars critically discusses new data and explores the role
that water played in the evolution of the surface of Mars, the past
hydrological provinces of the planet, the possibility of heated
lake habitats through enhanced geothermal flux associated with
volcanic activity and impact cratering. The book also explores
alternate hypotheses to explain the geological record. Topographic,
morphologic, stratigraphic, and mineralogic evidence are presented
that suggest successions of ancient lake environments in Valles
Marineris and Hellas. The existence of large lakes and/or small
oceans in Elysium and the Northern Plains is supported both by the
global distribution of deltaic deposits and by equipotential
surfaces that may reflect their past margins. Whether those
environments were conducive to life has yet to be demonstrated but
from comparison with our planet, their sedimentary deposits may
provide the best opportunity to find its record, if any. The final
chapters explore the impact of climate variability on declining
lake habitats in one of the closest terrestrial analogs to Mars at
the Noachian/Hesperian transition, identify the geologic,
morphologic and mineralogic signatures of ancient lakes to be
searched for on Mars, and present the case for landing the Mars
Science Laboratory mission in such an environment.
The study of dark matter, in both astrophysics and particle
physics, has emerged as one of the most active and exciting topics
of research in recent years. This book reviews the history behind
the discovery of missing mass (or unseen mass) in the Universe, and
ties this into the proposed extensions to the Standard Model of
Particle Physics (such as Supersymmetry), which were being proposed
within the same time frame. This book is written as an introduction
to these problems at the forefront of astrophysics and particle
physics, with the goal of conveying the physics of dark matter to
beginning undergraduate majors in scientific fields. The book goes
onto describe existing and upcoming experiments and techniques,
which will be used to detect dark matter either directly on
indirectly.
The sun is essential for human life. This book introduces students
to the concept of the sun and discusses its importance. With images
that are easy to identify and clear, simple sentence structures,
this science reader simplifies scientific concepts for young
students as they improve their reading skills. A fun and easy
science experiment and Your Turn! activity provide more in-depth
opportunities for additional learning. Nonfiction text features
include a glossary and an index. Engage students in learning with
this dynamic text!
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