Sunday, July 27, 2008

Celestron SkyScout Personal Planetarium

Celestron SkyScout Personal Planetarium

From Celestron

 

Manufacturer
The SkyScout is a revolutionary handheld device that uses advanced GPS technology with point and click convenience to identify thousands of stars, planets, constellations and more.

 

Identify
Simply point the SkyScout at any star in the sky and click the target button. The SkyScout will tell you what object you are looking at.

Celestron SkyScout

Locate
To locate a star or planet, select the object's name from the menu and follow the directional arrows through the viewfinder. SkyScout tells you when you are on target. It's that easy!

Learn
Once you have targeted an object the real fun begins. The SkyScout includes entertaining and educational audio and text information, including facts, trivia, history and mythology about our most popular celestial objects. A fun learning tool for all ages, the SkyScout personal planetarium puts the knowledge of an expert astronomer in the palm of your hand.

SkyScout features

  • Identifies celestial objects with the click of a button.
  • Locates over 6,000 stars, planets and constellations from built-in celestial database and provides scientific information for each object.
  • Provides comprehensive text and audio descriptions providing history, mythology and other entertaining information for the most popular objects.
  • Tonight's Highlights: a customized list of the 20 best objects to view for your exact date, time and location anywhere in the world.
  • Constellation lessons: if the star you identify or locate is part of a constellation like the Big Dipper, you can actually take a guided tour through all the stars in that constellation and even see an onscreen map of the constellation.
  • Built-in field guide includes:
    • Introduction to astronomy: a six part audio lesson on the origin and history of astronomy
    • Glossary of terms: text defining popular astronomy terms including planets, comets, galaxies and more
    • Great Astronomers: text bios on some of the world's greatest astronomers including Galileo, Einstein and Copernicus
    • Man-made space objects: text description of some of the coolest objects man has sent into space including the International Space Station, the Hubble Space Telescope and the Space Shuttle
    • Comet guide: text descriptions about history's most famous comets including Halley's Comet and Comet Hale-Bop
  • SD card slot: for optional Sky Tour audio presentations that provide hours of entertainment on a variety of topics
  • USB port: allows database to be updated with new objects as they are discovered, comets, etc.
  • Simple enough for all ages: just turn it on and it's ready to use
  • Built-in help menu: includes a quick start instruction guide for using the SkyScout
  • Bring it anywhere: compact and light design makes it easy to carry and durable construction makes it safe for rugged environments
  • Backed by Celestron's 2-year warranty

Saturday, July 19, 2008

The Black Hole War: My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics

The Black Hole War: My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics

What happens when something is sucked into a black hole? Does it disappear? Three decades ago, a young physicist named Stephen Hawking claimed it did-and in doing so put at risk everything we know about physics and the fundamental laws of the universe. Most scientists didn't recognize the import of Hawking's claims, but Leonard Susskind and Gerard t'Hooft realized the threat, and responded with a counterattack that changed the course of physics. THE BLACK HOLE WAR is the thrilling story of their united effort to reconcile Hawking's revolutionary theories of black holes with their own sense of reality-effort that would eventually result in Hawking admitting he was wrong, paying up, and Susskind and t'Hooft realizing that our world is a hologram projected from the outer boundaries of space.
A brilliant book about modern physics, quantum mechanics, the fate of stars and the deep mysteries of black holes, Leonard Susskind's account of the Black Hole War is mind-bending and exhilarating reading.

About the Author
Leonard Susskind has been the Felix Bloch Professor in theoretical physics at Stanford University since 1978. The author of The Cosmic Landscape, he is a member of the National Academy of Science and the American Academy of Arts and Sciences, and recipient of numerous prizes including the science writing prize of the American Institute of Physics for his Scientific American article on black holes.

 

Reviews

Susskind shines !!
This is absolutely the greatest example of what popular science book about theoretical physics/cosmology should be !! Writing is so brilliant, witty, straightforward, direct and succinct, that regardless of education level, anybody can enjoy interesting content (history of science as well as author's personal story) of "The Black Hole War". Author uses analogies in the best possible way, comparable only to Brian Greene and Michio Kaku. Drawings are frequent, well selected, informative and easy to understand. He writes: "The real tools for understanding the quantum universe are abstract mathematics: infinite dimensional Hilbert spaces, projection operators, unitary matrices and a lot of other advanced principles that take a few years to learn. But let's see how we do in just a few pages". AND HE DELIVERES !! While this book could be a starter for anybody, I recommend it to all who know Kip Thorne's famous work. For reason unknown to me, important black hole "war" is not mentioned in "Black Holes & Time Warps" at all. Professor Susskind created a true masterpiece where he even accepts coexistence of science and faith by writing: "The British intellectual world seems to be big enough for both Dawkins and Polkinghorne". Nothing but big applaud for the author and his effort !!

 

The history is ultimately written by the winners
Leonard Susskind is not only a co-father of string theory, the holographic principle, and many other key concepts of physics but also one of the most original physicists of our era.
He's been fighting against some superficially plausible but fundamentally wrong ideas for decades. During this ferocious fight, he had to discover many fascinating things about quantum gravity.
The battle was about the preservation of the information by black holes. Using revolutionary but approximate results, Stephen Hawking has argued since the 1970s that the information is lost after a black hole evaporates. Leonard Susskind claimed that it was preserved: this preservation, also called unitarity, is one of the postulates of quantum mechanics and these postulates are and have to be completely universal.
Susskind was right. We know many reasons why it is so, including recent results in string theory, and many of them are explained in the book. We also know loopholes that show that Hawking's old qualitative arguments are not quite correct even though his numerical results are numerically almost accurate.
It took many years for Hawking to understand and admit that the information was preserved in the full theory and that physics makes sense. During those years, Susskind was a new "Ahab" waiting for Hawking's elusive concession. However, the book offers a lot of personal stories and emotions, too. Susskind talks about several well-known names of science such as Stephen Hawking, Gerard 't Hooft, Roger Penrose, and Richard Feynman. All of them, and others, have been players in this fascinating story. [Read on...]

 

 

Saturday, July 5, 2008

Flying Saucers and Science - Books

Flying Saucers and Science: A Scientist Investigates the Mysteries of UFOs: Interstellar Travel, Crashes, and Government Cover-Ups Flying Saucers and Science: A Scientist Investigates the Mysteries of UFOs: Interstellar Travel, Crashes, and Government Cover-Ups
By Stanton T. Friedman

 

Flying Saucers and Science is a comprehensive look at the scientific data on the flying saucer phenomenon. Nuclear physicist and lecturer Stanton T. Friedman has distilled more than 40 years of research on UFOs, and shares his work on a wide variety of classified advanced nuclear and space systems. He answers a number of physics questions in layman's terms, and establishes that travel to nearby stars is within reach without violating the laws of physics.

 

Photographs of little known, far-out advanced propulsion systems, on some of which he worked, are included. Friedman also presents data demonstrating the ability to withstand high accelerations with some surprising results. He clearly shows that government policy on this subject has been to provide false, misleading claims and disinformation, and establishes that the subject truly represents a Cosmic Watergate.

 

Flying Saucers and Science presents intriguing data from a number of large-scale scientific UFO studies that almost no one, especially the noisy negativists, has discussed in detail. It deals with a host of "why" questions such, as reasons for the cover-up, reasons for aliens to come to Earth, and reasons for not landing on the White House lawn. Friedman unveils the SETI program, and details the antipathy of science-fiction writers to UFOs and other mysteries of the saucer conundrum. False notions about those who believe in the reality of alien visitors and the adequacy of coverage by the journalistic and scientific communities are reviewed.

 

In this book you'll discover:

* What type of energy and technologies could provide travel

* between the stars.

* The most likely locations in the universe where aliens come from.

* Why the aliens are here.

* Who believes in the flying saucer phenomenon.

* The government's motives to cover-up.

Readers of Flying Saucers and Science will never feel the same about UFOs again.

 

A Good Overview
This book assumes the reader is already quite knowledgeable about Roswell/MJ-12 etc. It refers broadly to primary source material such as "project blue book special report #14" that purportedly describes many documented "physical trace" UFO sightings but does not provide specific examples therefrom, which would have been helpful.

Deliciously enjoyed was Friedman's ruthless lampooning of the over-hyped "Cult of SETI" and his analysis of why major news outlets, such as the Washington Post, are content not to treat the UFO topic seriously.

Crop circles and animal mutilation cases are specifically excluded from coverage in this book. While not for the novice, Flying Saucers and Science is a stimulating and informative read. The bibliography is a bit terse, however.

 

Stanton Friedman does it again
Stanton Friedman does it again. From an in-depth look at how the world's governments and military can keep secrets from themselves and the rest of the world to the multitude of factual evidence supporting UFO sightings, landings and abductions; his latest book does not disappoint. Anyone who is famliar with him or his work should know that he has worked as a nuclear physicist for years, many of which were for classified government and private projects.

In his latest book, he presents some of the most compelling evidence for the "Cosmic Watergate" surrounding UFOs, extraterrestrial life and their cover-up, which has been in effect for at least 60 years. From examining exotic propulstion systems, including nuclear fission and fusion powered rockets, to the reasons why such disclosure of ET life is the most important topic for us as a species, this book is simply a must read.

 

Very engaging!
I have read other books and articles by Stan and they're all very enlightening. Although some of the concepts in this book are geared more towards the real science behind how the UFOs might operate, etc... Stan does a good job keeping the layman engaged throughout.
I have exchanged e-mails with Stan on several occassions and he's always consistent in his answers and very well informed.
To me, Stan is the ultimate authority in Ufology.
Buy this book!

Celestron Sky Maps

The maps are excellent, bought this for my 10 year od daughter and some of the wording inside is a bit beyond her at this time but she can grow into it

Gift recipient said it was great. I can't add any more than that.

 

Celestron Sky Maps
From Celestron List Price: $24.00
Price: $18.01

Features
Ideal teaching tool for learning the night's sky
Specially designed cover rotates to simulate the seasonal progression of celestial objects
Illustrated reference section provides basic information and the visual characteristics of various types of stars, nebulae and galaxies

From the Manufacturer
Celestron Sky Maps are the ideal teaching guide for learning the night sky. Even if you already know your way around the major constellations, these maps can help you locate all kinds of fascinating objects.

The front cover has a specially designed luminous planisphere that rotates to simulate the seasonal progression of celestial objects through the sky. When the planisphere is preexposed to light, star positions glow brightly against a dark background, mimicking actual constellations. More than 1,000 stars and deep-sky objects are listed and charted. The illustrated reference section provides basic information and the visual characteristics of various types of stars, nebulae, and galaxies.

The maps measure 13.75 by 11.5 inches and are printed on a heavyweight, moisture resistant card stock. The pages have a special comb binding so they can lay flat or be folded over.

 

Ref: Cheap Telescopes Associates - Celestron Sky Maps

 

Tuesday, July 1, 2008

A Briefer History of Time By Stephen W. Hawking, Leonard Mlodinow

A Briefer History of Time By Stephen W. Hawking, Leonard Mlodinow

A Briefer History of Time By Stephen W. Hawking, Leonard Mlodinow

Stephen Hawking’s worldwide bestseller, A Brief History of Time, has been a landmark volume in scientific writing. Its author’s engaging voice is one reason, and the compelling subjects he addresses is another: the nature of space and time, the role of God in creation, the history and future of the universe. But it is also true that in the years since its publication, readers have repeatedly told Professor Hawking of their great difficulty in understanding some of the book’s most important concepts.

This is the origin of and the reason for A Briefer History of Time: its author’s wish to make its content more accessible to readers—as well as to bring it up-to-date with the latest scientific observations and findings.

Although this book is literally somewhat “briefer,” it actually expands on the great subjects of the original. Purely technical concepts, such as the mathematics of chaotic boundary conditions, are gone. Conversely, subjects of wide interest that were difficult to follow because they were interspersed throughout the book have now been given entire chapters of their own, including relativity, curved space, and quantum theory.

This reorganization has allowed the authors to expand areas of special interest and recent progress, from the latest developments in string theory to exciting developments in the search for a complete unified theory of all the forces of physics. Like prior editions of the book—but even more so—A Briefer History of Time will guide nonscientists everywhere in the ongoing search for the tantalizing secrets at the heart of time and space.

From the Hardcover edition.

From Publishers Weekly
Starred Review. In the 17 years since the publication of A Brief History of Time, Dr. Hawking's bestselling exposition of physics, new data from particle physics and observational astronomy have shed light on efforts to find a Grand Unified Theory of Everything that Hawking and Mlodinow use to enhance and update their answers to basic questions about the universe: where it's going and how it began. Discussed at length are the mysterious dark matter and dark energy-both of which can only be observed by their gravitational effects and are believed to make up 90 percent of the universe. Another area of research that has exploded in the past 20 years is string theory. Hawking and Mlodinow provide one of the most lucid discussions of this complex topic ever written for a general audience. Readers will come away with an excellent understanding of the apparent contradictions and conundrums at the forefront of contemporary physics. Recognizing that much of their audience will also be science fiction buffs, they include a chapter on the possibility of time travel. "Don't bet on it," the authors advise. Throughout these discussions, the authors maintain the same wry, lively tone that made the original Brief History such a delight. They close with a discussion of where physics ends and philosophy begins, "Why does the universe exist at all?" They cannot provide the answer, but they do provide an immense amount of food for thought. Highly recommended.
Copyright © Reed Business Information, a division of Reed Elsevier Inc. All rights reserved.

 

From Scientific American
Hawking's A Brief History of Time, published in 1988, was a surprise best-seller but a tough read for most people who tackled it. Hawking received many requests for a version that would make his discussion of deep questions about the universe more accessible. This book does that. Hawking and Mlodinow, a physicist turned science writer, proceed by small and careful steps from the early history of astronomy to today's efforts to construct a grand unified theory of the universe.

Editors of Scientific American

 

Ref: A Briefer History of Time - Google Book Search

Buy this book aStore.Amazon.com

 

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