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The Life and Death of Stars by Kenneth R.Lang |
Geschrieben von: photoshop - 14.01.2014, 03:03 - Forum: Ebooks und Magazine
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The Life and Death of Stars by Kenneth R.Lang
WEB-Rip | WMV @ 1 Mbit/s | 640x360 | WMA Stereo @ 128 Kbit/s 44 KHz | 12 Hours | 9.77 GB
Genre: Astronomy, Astrophysics | Language: English | PDF Included
For thousands of years, stars have been the prime example of something unattainable and unknowable?places so far away that we can learn almost nothing about them. Yet amazingly, astronomers have been able to discover exactly what stars are made of, how they are born, how they shine, how they die, and how they play a surprisingly direct role in our lives. Over the past century, this research has truly touched the stars, uncovering the essential nature of the beautiful panoply of twinkling lights that spans the night sky.
Consider these remarkable discoveries about the stars:
We are stardust: Every atom heavier than hydrogen and a few other light elements was forged at the heart of a star. The oxygen we breathe, the carbon in every cell of our bodies, and practically all other chemical elements are, in fact, stellar ashes.
Light fingerprints: Stars emit light across the entire range of the electromagnetic spectrum. Spectral lines and other features of starlight act like fingerprints to identify what a star is made of, its temperature, motion, and other properties.
Diamonds in the sky: Carbon is the end product of stars that are roughly the size of our sun. When such stars die, they shrink down to an unimaginably dense and inert ball of carbon atoms?a massive diamond in the sky called a white dwarf.
Space weather: Stars produce more than light and heat. Their outermost layer emits a steady stream of charged particles that constitutes a stellar wind. This wind can be strong enough to strip an atmosphere off a nearby planet.
No other large-scale object in the universe is as fundamental as a star. Galaxies are made of stars. Planets, asteroids, and comets are leftover debris from star formation. Nebulae are the remnants of dead stars and the seedbed for a new generation of stars. Even black holes, which are bizarre deformations of spacetime with infinite density, are a product of stars, typically created when a high-mass star ends its life in core collapse and a supernova explosion. And, of course, the sun is a star, without which we couldn?t exist.
Long ago, the magnificence of the star-filled sky and its clock-like motions inspired people to invent myths to explain this impressive feature of nature. Now we understand the stars at a much deeper level, not as legendary figures connected with constellations, but as engines of matter, energy, and the raw material of life itself. And thanks to powerful telescopes, our view of the stars is more stunning than ever.
The Life and Death of Stars introduces you to this spectacular story in 24 beautifully illustrated half-hour lectures that lead you through the essential ideas of astrophysics?the science of stars. Your guide is Professor Keivan G. Stassun of Vanderbilt University, an award-winning teacher and noted astrophysicist. Professor Stassun provides lively, eloquent, and authoritative explanations at a level suitable for science novices as well as for those who already know their way around the starry sky.
Understand Astronomy at a Fundamental Level
Stars are a central topic of astronomy, and because the study of stars encompasses key concepts in nuclear physics, electromagnetism, chemistry, and other disciplines, it is an ideal introduction to how we understand the universe at the smallest and largest scales. Indeed, today?s most important mysteries about the origin and fate of the universe are closely connected to the behavior of stars. For example, the accelerating expansion of the universe due to a mysterious dark energy was discovered thanks to a special type of supernova explosion that serves as an accurate distance marker across the universe. And another enigma, dark matter, may have played a crucial role in the formation of the earliest stars.
Using dazzling images from instruments such as the Hubble Space Telescope, along with informative graphics and computer animations, The Life and Death of Stars takes you to some otherworldly destinations, including these:
Stellar nurseries: Stars form inside vast clouds of interstellar gas and dust, where every phase of stellar growth can often be seen. Take a virtual fly-through of the Orion Nebula, witnessing the dynamism of stellar creation and the immensity of the regions where stars are born.
Planetary nebulae: Mislabeled ?planetary? because they were originally thought to involve planets, these slowly expanding shells of glowing gas are the last outbursts of dying stars. They vary widely in shape and color and are among the most beautiful of celestial sights.
Core of the sun: We can?t see into the sun, but sunquakes and other clues reveal the extreme conditions at its center, 400,000 miles below the visible surface. Make an imaginary trip there, viewing the layers that transfer heat from the 15-million-degree Celsius cauldron at the sun?s core.
Protoplanetary systems: Planets form inside disks of gas and dust surrounding young stars. See how newborn planets jockey for position close to their parent stars and how some planets are ejected from the system?a fate that may have befallen planets orbiting our own sun.
Reach for the Stars
Just as fascinating as the places you visit are the observational techniques you learn about. One of Professor Stassun?s research areas is exoplanetary systems?planets orbiting other stars. You investigate the different methods astronomers use to detect inconspicuous, lightless planets lost in the glare of brilliant stars, seen from many light-years away. You also explore the principles of telescopes and light detectors, and you learn about the vast range of the electromagnetic spectrum, the largest part of which is invisible to human eyes?but not to our instruments.
An astronomer?s other tools for understanding stars include the invaluable Hertzsprung-Russell diagram, which tells the complete story of stellar evolution in one information-rich graphic. You compare the sun?s position on this chart with the entire range of other star types that have varying masses, temperatures, and colors.
You also become familiar with the periodic table of elements, discovering how fusion reactions inside stars forge successively heavier atoms, producing some in abundance, temporarily skipping others, and creating everything heavier than iron in the cataclysmic blast of a supernova. Nickel, copper, gold, and scores of other elements important to humans thus owe their existence to the most energetically powerful phenomenon in the cosmos. You see, too, how astronomers use computer models to analyze the rapid sequence of events that leads to a supernova.
?Hitch your wagon to a star,? advised Ralph Waldo Emerson. In other words, reach for the stars! The Life and Death of Stars is your guide to this lofty goal.
24 Lectures
01 Why the Stellar Life Cycle Matters
02 The Stars? Information Messenger
03 Measuring the Stars with Light
04 Stellar Nurseries
05 Gravitational Collapse and Protostars
06 The Dynamics of Star Formation
07 Solar Systems in the Making
08 Telescopes?Our Eyes on the Stars
09 Mass?The DNA of Stars
10 Eclipses of Stars?Truth in the Shadows
11 Stellar Families
12 A Portrait of Our Star, the Sun
13 E = mc2?Energy for a Star?s Life
14 Stars in Middle Age
15 Stellar Death
16 Stellar Corpses?Diamonds in the Sky
17 Dying Breaths?Cepheids and Supernovae
18 Supernova Remnants and Galactic Geysers
19 Stillborn Stars
20 The Dark Mystery of the First Stars
21 Stars as Magnets
22 Solar Storms?The Perils of Life with a Star
23 The Stellar Recipe of Life
24 A Tale of Two Stars
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Contact to email: downloadsuport191@gmail[dot]com for support all you need !
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creativeLIVE: Posing 101 with Lindsay Adler |
Geschrieben von: photoshop - 14.01.2014, 03:01 - Forum: Ebooks und Magazine
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creativeLIVE: Posing 101 with Lindsay Adler
WEB-Rip | WMV @ 1 Mbit/s | 968x544 | WMA Stereo @ 128 Kbit/s 44 KHz | 16h 20min | 5.18 GB
Genre: Photography | Language: English
Ready to expand your posing skills? Join fashion photographer and creativeLIVE instructor Lindsay Adler for a hands-on introduction to the fundamental posing techniques every photographer needs to know.
During live photo shoots, Lindsay will cover how to work with different body types, including how to tailor movement and body angles, using a wide variety of models as examples. You?ll learn how to delight your clients by ensuring flattering results, every time. You?ll also learn about how your camera and lens choices affect posing choices, and how to select the gear that meets your needs. Lindsay will also teach you strategies for posing in more challenging situations ? including creatively posing brides and grooms, connecting with shy subjects, and working with subjects who aren?t classically ?beautiful.?
Whether you?re a novice photographer beginning to move from candid shots to posed ones or an old pro looking for some new posing tricks, this course will give you the skills you need to make every shoot a success.
Lindsay Adler
Lindsay Adler is a professional portrait and fashion photographer based in New York. Her editorials have appeared in dozens of publications internationally including Bullett Magazine, Zink Magazine, Fault and more. She regularly contributes to a variety of major photo publications including Professional Photographer, Rangefinder Magazine, and Popular Photography.
HOme:_http://www.creativelive.com/courses/posing-101-lindsay-adler
Link Download:
Contact to email: downloadsuport191@gmail[dot]com for support all you need !
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creativeLIVE: Book Yourself Solid with Michael Port (HD Videos) |
Geschrieben von: photoshop - 14.01.2014, 02:58 - Forum: Ebooks und Magazine
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creativeLIVE: Book Yourself Solid with Michael Port (HD Videos)
English | Duration: 3 Days | MKV | 1280x720 | 25fps 700kbps | 96kbps 44.1KHz | 8.77GB
Genre: Photography
Book more clients, earn more referrals, and build profitable, long-lasting professional relationships with the Book Yourself Solid system. Whether you are a photographer who needs to book more portrait sessions or an acupuncturist who needs more clients, this course with best-selling author Michael Port will teach you better marketing techniques that immediately bring more clients and money into your business.
During this special 3-day course, you'll learn how to find ideal clients that energize and inspire you, how to understand your clients' needs, and how to master the 4-part simple sales formula to book the business almost every time. Michael will also teach you how to reach out to prospective clients and referral partners, tips to help improve your website, and how to build your social platform to help grow your business.
If your business is just getting started and you need help finding the perfect client, this workshop is a must-attend for you!
More info_http://www.creativelive.com/courses/book-yourself-solid-michael-port
Link Download:
Contact to email: downloadsuport191@gmail[dot]com for support all you need !
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Heimkino 02.2014 Februar-März 201 |
Geschrieben von: derwolf - 13.01.2014, 23:40 - Forum: Ebooks und Magazine
- Keine Antworten
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Inhalt:
Bildgiganten: HD- und UHD-TVs ab 152 Zentimeter
Die besten Lautsprecher des Jahres: 12 erstklassige Lautsprechersets ab 500 Euro und 12 Frontsurroundsysteme für besseren TV-Klang
Referenzklang: 7.1-AV-Receiver Arcam AVR450
Günstige 5.1-Sets: Kompaktes Set von Heco und musikalisches Lautsprecherset von Teufel
Top-Beamer: BenQ W1300 mit super Bild out of the box und 3D - der Beste für 1.200 Euro
Format PDF | GröÃe 21 MB | Seitenanzahl 108 | Hoster UL
[HIDE][HIDE] Heimkino 02.2014[/HIDE][/HIDE]
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Delphi DS150E welcher Bluetooth Stick ? |
Geschrieben von: arthur89 - 13.01.2014, 23:23 - Forum: Autocom
- Antworten (13)
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Hallo,
undzwar habe ich mir den DFS50E als Bluetooth Variante gekauft.
Nun stellt sich für mich die Frage welchen USB Stick man benutzen kann.
Den von Delphi offiziell angegebenen USB Stick von Belkin konnte ich finden, dieser kostet jedoch ca. 35 â¬.
Kennt einer von euch noch andere USB Sticks welche funktionieren ?
Falls ja, dann bitte mit Modelnummer.
Danke
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Photoshop for Photographers: Color Emphasis with Chris Orwig |
Geschrieben von: photoshop - 13.01.2014, 15:22 - Forum: Ebooks und Magazine
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Photoshop for Photographers: Color Emphasis with Chris Orwig
English | Jan 10, 2014 | .MP4 | h264, yuv420p, 960x600, 15.00 fps® | aac, 48000 Hz, stereo | 2.24 GB
Genre: E-learning
Make your photos pop with the selective use of color and Adobe Photoshop. In this short course, Chris Orwig takes you through a few methods to achieve amazing results with creative color. You'll learn to create color splash effects, hand paint color in both traditional and modern ways, colorize a grayscale image, target a color with masking and adjustment layers, and create vivid, vibrant color that makes your pictures come alive.
Topics include:
Isolating color
Removing and highlighting color
Selectively desaturating an image
Hand painting in color in a specific area
Posterizing an image
Creating a sepia-toned look
Colorizing an entire image
Changing the background color
Creating vibrant color with adjustment layers
Copying and reusing color adjustments to a new photo
More Info:_http://www.lynda.com/Photoshop-tutorials/Photoshop-Photographers-Color-Emphasis/142959-2.html
Link Download:
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Insights on Graphic Design with Sean Adams |
Geschrieben von: photoshop - 13.01.2014, 15:20 - Forum: Ebooks und Magazine
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Insights on Graphic Design with Sean Adams
English | Jan 10, 2014 | .MP4 | h264, yuv420p, 960x540, 29.97 fps® | aac, 48000 Hz, stereo | 420 MB
Genre: E-learning
Sean Adams is one of the most celebrated designers of our time. He also is cofounder of the firm AdamsMorioka, a professor at the Art Center College of Design, and the national president of AIGA. In this interview, Sean shares his sources of inspiration and his advice for new designers on portfolios and breaking into the industry, and discusses the role technology and social media play in a designer's life.
More Info:_http://www.lynda.com/Design-Design-Business-tutorials/Insights-Graphic-Design-Sean-Adams/148341-2.html
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