 | How Did Life Emerge Here? Evolution If you were to explore the ground in almost any terrestrial region on Earth, chances are you would find soil. This layer of Earth's surface is essential to life. It supplies, both directly and indirectly, what we eat and wear, as well as the oxygen we breathe. Even so, it's easy to take soil for granted. You might assume that the soil near your home or elsewhere has been there forever. However, the land surface has changed dramatically over geologic time. For instance, depending on its location, soil formation may have been interrupted by volcanic activity, glacial movement, or climate change. In some parts of the world, entirely new land masses are forming as you read this. So what is soil, how does it form, and how does it support life? |
 | Science Project - Big Bang and the Universe This is a intro movie, for my science project. |
 | NASA | Beyond Einstein: Part II View "Beyond Einstein: Part I" at: http://youtube.com/watch?v=S3Wc2boxdYE Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434 Albert Einstein's theories rank among humanity's greatest achievements. They sparked the scientific revolution of the 20th Century. In their attempts to understand how space, time and matter are connected, Einstein and his successors made three predictions... First, that space is expanding from a Big Bang. Second, that black holes exist -- these extremely dense places in the universe where space and time are tied into contorted knots and where time itself -- stops. And third, that there is some kind of energy pulling the universe apart. These three predictions seemed so far-fetched, that everyone, including Einstein himself, thought they were unlikely. Incredibly, all three have turned out to be true. This is where NASA's Beyond Einstein program begins. Using advanced space-based technology to explore these three questions, NASA and its partners begin the next revolution in our understanding of the universe. NASA's Beyond Einstein program is poised to complete Einstein's legacy -- and ultimately unravel the mysteries of the Universe. For more information visit: http://universe.nasa.gov/ |
 | Project Universe - The Big Bang (3 of 3) Mini black holes could have formed shortly after the Big Bang and may be exploding around this time now. The universe may have open or closed curved space-time geometry. [COMMENT] Recent discoveries in astronomy such as dark matter and dark energy are forcing a fundamental change in theoretical physics. Today physicists are conjecturing mulitple universes arising from multi-dimensional "branes". The universe seems more fantastic than ever before and continues to stagger our imagination. Astronomy is at the threshhold of a revolutionary development. |
 | Brightest GRB was aimed at Earth Read more: http://space.newscientist.com/article/dn14707?DCMP=youtube This animation shows how astronomers think light from a gamma-ray burst called 080319B was released. A narrow jet punched though the outer layers of a collapsing star; this was followed by a wider, less energetic beam (Courtesy of NASA/Swift/Cruz deWilde) |
 | Einstein's Special Theory of Relativity E=mc2 speed of light http://www.myspace.com/acorvettes The steps Einstein took to develop his special theory of relativity are as follows: First, Einstein tried to understand what must be implied by the fact that light travels at a speed independent of its source. From this, he realized that time and space are not simply two unrelated concepts; rather, they must be linked in a space-time system whose properties appear most dramatically when objects move very fast and are observed by two different observers moving with respect to one another. His final and greatest step led him to discover and clarify mathematically many new things about the world that are important in each and every frame of reference. In each and every frame of reference, there are relationships that hold because of the nature of space and time. If space and time were to be reconceived in a new interactive way, then other things, like momentum and energy, had to be reconceived, too. In fact, momentum and energy are linked like space and time. |
 | The Grand Canyon: How It Formed Erosive forces continue to shape the Grand Canyon today, millions of years after it began to form. Normal channel erosion alone, however, cannot explain the many kilometers that separate its rims. The strongest explanation holds that the major factor in the widening of the canyon has been activity from tributary drainage systems -- the side streams, rivulets, and gullies outside the main river channel. The greatest erosive force in these tributaries is the fast-moving landslide called a debris flow. |
 | NASA | The Big Bang Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434 This dominant cosmological theory suggests the Universe began nearly 13.7 billion years ago, expanding rapidly from a very dense and incredibly hot state. Eventually, stars ignited and galaxies slowly formed. The Big Bang theory has been imporved and advanced especially through NASA's Cosmic Background Explorer (COBE) and WMAP missions. This animation conceptualizes these explosive beginnings of the Universe. This animation begins with a pinpoint of light as the Big Bang, and continues to show the formation of the first stars and galaxies. For more information: http://www.nasa.gov/topics/universe |
 | Quantum Mechanics The Uncertainty Principle Light Particle's http://www.myspace.com/acorvettes Single photons are the smallest quantities of light and, despite having no mass, have many properties in common with particles. In fact, physicists often think of photons as particles -- particles that sometimes behave like waves. Physicists sometimes describe all particles as waves -- even those with mass, such as electrons and protons -- in order to better understand certain aspects of their behavior. |
 | SWIFT Detects Naked-Eye Explosion Halfway Across Universe This video is about the SWIFT Mission and Gamma Ray Burst. It's a little old as the SWIFT spacecraft was launched back in November of 2004, however the information about gamma ray burst is still good. To find out about the recent naked-eye explosion detected, including images, visit us at http://figbranch.com/index.php?option=com_content&task=view&id=134&Itemid=32 |
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