The Scale of the Universe

Konstantin Tsiolkovsky Intro BiographyTsiolkovsky, Konstantin Eduardovich (1857-1935). Konstantin E. Tsiolkovsky State Museum of the History of Cosmonautics Russian physicist and school teacher, regarded as the founder of modern rocket theory. 'The Cosmic Connection' "We are like the inhabitants of an isolated valley in New Guinea who communicate with societies in neighboring valleys (quite different societies, I might add) by runner and by drum. When asked how a very advanced society will communicate, they might guess by an extremely rapid runner or by an improbably large drum. They might not guess a technology beyond their ken. And yet, all the while, a vast international cable and radio traffic passes over them, around them, and through them...

Timeline: The evolution of life - life - 14 July 2009 Read full article Continue reading page |1|2|3|4 There are all sorts of ways to reconstruct the history of life on Earth. Pinning down when specific events occurred is often tricky, though. Ghostly gamma-ray beams blast from Milky Way's center (Phys.org) -- As galaxies go, our Milky Way is pretty quiet. Active galaxies have cores that glow brightly, powered by supermassive black holes swallowing material, and often spit twin jets in opposite directions. In contrast, the Milky Way's center shows little activity. But it wasn't always so peaceful. New evidence of ghostly gamma-ray beams suggests that the Milky Way's central black hole was much more active in the past. Ultimate fate of the universe The ultimate fate of the universe is a topic in physical cosmology. Many possible fates are predicted by rival scientific theories, including futures of both finite and infinite duration. Once the notion that the universe started with a rapid inflation nicknamed the Big Bang became accepted by the majority of scientists,[1] the ultimate fate of the universe became a valid cosmological question, one depending upon the physical properties of the mass/energy in the universe, its average density, and the rate of expansion. There is a growing consensus among cosmologists that the universe is flat and will continue to expand forever.[2][3] The ultimate fate of the universe is dependent on the shape of the universe and what role dark energy will play as the universe ages.

Greek Mythology Resource Page Greek Mythology Resource Page Greek mythology refers to the entire corpus of fantastic and heroic stories used by ancient Greek people to make sense of the world in which they lived. Though they are studied now mainly from a literary and cultural perspective, for the people of the classical Greek world, they were the facts of religious life. Greek mythology was intricately bound up in notions of cosmology , the study of the origin and nature of the universe. Natural phenomena in the observable world were attributed to gods from the earliest times; this helped Greek people understand and cope with the natural world. As eras progressed, Greek thinkers developed an intricate, coherent view of the whole universe incorporating religious and philosophical elements.

Happy Future Day! March 1st, 2012 Marks the Start of this Soon to be Great Tradition. Celebrate Change! March 1st, 2012 – Today is the best Future Day that’s ever been. It’s also the only Future Day that’s ever been, but that’s besides the point. Future Day is the new holiday focused on celebrating all the wonderful possibilities, responsibilities, and joys that await us in the years ahead. Celebrating 50,000 Generations of the Long Term Lines Front row: Ryan Quick, Chris Strelloff, and Brian Baer Standing: Justin Meyer, Jeff Barrick, Christian Orlic, James Dittmar, RohanMaddamsetti, Caroline Turner, Brian Wade, Mike Wiser, Neerja Hajela, Richard Lenski, Devin Dobias In Back: Zachary Blount Drawn by Zachary Blount Hubble Goes to the eXtreme to Assemble Farthest-Ever View of the Universe Hubble Goes to the eXtreme to Assemble Farthest-Ever View of the Universe Like photographers assembling a portfolio of best shots, astronomers have assembled a new, improved portrait of mankind's deepest-ever view of the universe. (Credit: NASA; ESA; G.

Brane cosmology Brane cosmology refers to several theories in particle physics and cosmology related to string theory, superstring theory and M-theory. Brane and bulk[edit] The central idea is that the visible, four-dimensional universe is restricted to a brane inside a higher-dimensional space, called the "bulk" (also known as "hyperspace"). If the additional dimensions are compact, then the observed universe contains the extra dimensions, and then no reference to the bulk is appropriate.

The Elegant Universe: Series ... The Elegant Universe: Part 3 PBS Airdate: November 4, 2003 NARRATOR: Now, on NOVA, take a thrill ride into a world stranger than science fiction, where you play the game by breaking some rules, where a new view of the universe pushes you beyond the limits of your wildest imagination. This is the world of "string theory," a way of describing every force and all matter from an atom to earth, to the end of the galaxies—from the birth of time to its final tick, in a single theory, a "Theory of Everything." Our guide to this brave new world is Brian Greene, the bestselling author and physicist.

Greetings from the Children of Planet Earth : Universe In 1977, NASA sent a pair of unmanned probes named Voyager 1 and Voyager 2 into space. Among the infrared spectrometers and radio receivers included on each probe were identical copies of the same non-scientific object: the Voyager Golden Record. Sheathed in a protective aluminum jacket, the Record is a 12-inch gold-plated copper disk containing sounds and images chosen to portray the diversity of life on Earth: bird calls, whale songs, the sounds of surf, wind, and thunder, music from human cultures, and some 55 greetings in a range of languages, alive and dead. Like lonely time capsules, the records, aboard their still-functioning hosts, have long since left our solar system.

Free conservation biology textbook: Conservation Biology for All Oxford University Press makes conservation biology textbook by some of the world's most prominent ecologists and conservation biologists available as free download Conservation Biology for All provides cutting-edge but basic conservation science to a global readership. A series of authoritative chapters have been written by the top names in conservation biology with the principal aim of disseminating cutting-edge conservation knowledge as widely as possible. Important topics such as balancing conversion and human needs, climate change, conservation planning, designing and analyzing conservation research, ecosystem services, endangered species management, extinctions, fire, habitat loss, and invasive species are covered. Numerous text boxes describing additional relevant material or case studies are also included. The global biodiversity crisis is now unstoppable; what can be saved in the developing world will require an educated constituency in both the developing and developed world.