Model describes universe with no big bang, no beginning, and no end (PhysOrg.com) -- By suggesting that mass, time, and length can be converted into one another as the universe evolves, Wun-Yi Shu has proposed a new class of cosmological models that may fit observations of the universe better than the current big bang model. What this means specifically is that the new models might explain the increasing acceleration of the universe without relying on a cosmological constant such as dark energy, as well as solve or eliminate other cosmological dilemmas such as the flatness problem and the horizon problem. Shu, an associate professor at National Tsing Hua University in Taiwan, explains in a study posted at arXiv.org that the new models emerge from a new perspective of some of the most basic entities: time, space, mass, and length. “We view the speed of light as simply a conversion factor between time and space in spacetime,” Shu writes. As Shu writes in his paper, the newly proposed models have four distinguishing features:
The Elegant Universe: Pt 1 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. BRIAN GREENE (Columbia University): And no matter how many times I come here, I never seem to get used to it. NARRATOR: Can he help us solve the greatest puzzle of modern physics—that our understanding of the universe is based on two sets of laws that don't agree? NARRATOR: Resolving that contradiction eluded even Einstein, who made it his final quest. BRIAN GREENE: We really may live in a universe with more dimensions than meet the eye. AMANDA PEET (University of Toronto): People who have said that there were extra dimensions of space have been labeled crackpots, or people who are bananas. NARRATOR: A mirage of science and mathematics or the ultimate theory of everything? S. We see 400 employees in three years.
Picture This | Flying by the seat of his seat Canada's Air Force Capt. Brian Bews ejects as his a CF-18 fighter jet plummets to the ground during a practice flight for an airshow at the Lethbridge County Airport on Friday, July 23, 2010, in Lethbridge, Alberta, Canada. Personal and Historical Perspectives of Hans Bethe - StumbleUpon Physics Flash Animations - StumbleUpon We have been increasingly using Flash animations for illustrating Physics content. This page provides access to those animations which may be of general interest. The animations will appear in a separate window. The animations are sorted by category, and the file size of each animation is included in the listing. Also included is the minimum version of the Flash player that is required; the player is available free from In addition, I have prepared a small tutorial in using Flash to do Physics animations. LInks to versions of these animations in other languages, other links, and license information appear towards the bottom of this page. The Animations There are 99 animations listed below. Other Languages and Links These animations have been translated into Catalan, Spanish and Basque: En aquest enllaç podeu trobar la versió al català de les animacions Flash de Física. These animations were written by David M.
The Science Creative Quarterly & A DIALOGUE WITH SARAH, AGED 3: IN WHICH IT IS SHOWN THAT IF YOUR DAD IS A CHEMISTRY PROFESSOR, ASKING “WHY” CAN BE DANGEROUS - StumbleUpon SARAH: Daddy, were you in the shower? DAD: Yes, I was in the shower. SARAH: Why? DAD: I was dirty. The shower gets me clean. DAD: Why does the shower get me clean? SARAH: Yes. DAD: Because the water washes the dirt away when I use soap. DAD: Why do I use soap? DAD: Because the soap grabs the dirt and lets the water wash it off. DAD: Why does the soap grab the dirt? DAD: Because soap is a surfactant. DAD: Why is soap a surfactant? DAD: That is an EXCELLENT question. DAD: Why does soap form micelles? DAD: Soap molecules are long chains with a polar, hydrophilic head and a non-polar, hydrophobic tail. SARAH: Aidrofawwic DAD: And can you say ‘hydrophobic’? DAD: Excellent! DAD: Why does it mean that? DAD: It’s Greek! SARAH: Like a monster? DAD: You mean, like being afraid of a monster? DAD: A scary monster, sure. (pause) SARAH: (rolls her eyes) I thought we were talking about soap. DAD: We are talking about soap. (longish pause) DAD: Why do the molecules have a hydrophilic head and a hydrophobic tail?
Math, Physics, and Engineering Applets Oscillations and Waves Acoustics Signal Processing Electricity and Magnetism: Statics Electrodynamics Quantum Mechanics Linear Algebra Vector Calculus Thermodynamics Mechanics Miscellaneous Licensing info. Links to other educational sites with math/physics-related information or java applets useful for teaching: And when you get tired of learning, here is some fun stuff: Pong Simulation Circuit-level simulation of original 1972 Pong. The Relativity of Wrong by Isaac Asimov - StumbleUpon by Isaac Asimov I received a letter from a reader the other day. It was handwritten in crabbed penmanship so that it was very difficult to read. Nevertheless, I tried to make it out just in case it might prove to be important. In the first sentence, he told me he was majoring in English Literature, but felt he needed to teach me science. (I sighed a bit, for I knew very few English Lit majors who are equipped to teach me science, but I am very aware of the vast state of my ignorance and I am prepared to learn as much as I can from anyone, however low on the social scale, so I read on.) It seemed that in one of my innumerable essays, here and elsewhere, I had expressed a certain gladness at living in a century in which we finally got the basis of the Universe straight. These are all twentieth-century discoveries, you see. The young man then quoted with approval what Socrates had said on learning that the Delphic oracle had proclaimed him the wisest man in Greece. No one knows nothing.
Heaven On Earth (8 Pics) - StumbleUpon For more fun facts, click HERE. List of idioms in the English language - Wikipedia, the free encyclopedia - StumbleUpon This is a list of notable idioms in the English language. An idiom is a common word or phrase with a culturally understood meaning that differs from what its composite words' denotations would suggest. For example, an English speaker would understand the phrase "kick the bucket" to mean "to die" – and also to actually kick a bucket. Visit Wiktionary's Category for over eight thousand idioms. See also[edit] References[edit] Jump up ^ "A bitter pill". Notes[edit] Jump up ^ Originally a hunting term.Jump up ^ Originally a British slang term for a quadruple amputee during World War I.Jump up ^ Originating with the English writer Francis Quarles who wrote:"Wee spend our mid-day sweat, or mid-night oyle;Wee tyre the night in thought; the day in toyle."
How You Can Make Good Use Of Your Old Machines | Windows.AppStorm - StumbleUpon Almost everyone reading the articles on this site will have spare computers languishing about. The rapid growth and improvements in hardware means that we cycle through a whole machine in only a few years. If you have spare machines and parts languishing about, you can put them to good use! In this article I have outlined some of the purposes your old hardware can serve. Like the article? Local File Server Everyone secretly wants one, and if you have the resources kicking around then why not have one? There are so many reasons to have a personal server. If you set up a Windows Share correctly, then you needn’t use FTP programs like FileZilla to conduct transfers. I am connected to my local server, and streaming music to my Windows box. Web Server This uses pretty much the same software and simple tech as the Local File Server. In order to achieve this properly, you do need to own a domain name or at least have a static-IP address. BOINC Node Here is Rosetta@Home running away. Torrent Box
Scientists Discover The Oldest, Largest Body Of Water In Existence--In Space | Fast Company - StumbleUpon Scientists have found the biggest and oldest reservoir of water ever--so large and so old, it’s almost impossible to describe. The water is out in space, a place we used to think of as desolate and desert dry, but it's turning out to be pretty lush. Researchers found a lake of water so large that it could provide each person on Earth an entire planet’s worth of water--20,000 times over. Yes, so much water out there in space that it could supply each one of us all the water on Earth--Niagara Falls, the Pacific Ocean, the polar ice caps, the puddle in the bottom of the canoe you forgot to flip over--20,000 times over. The water is in a cloud around a huge black hole that is in the process of sucking in matter and spraying out energy (such an active black hole is called a quasar), and the waves of energy the black hole releases make water by literally knocking hydrogen and oxygen atoms together. The new cloud of water is enough to supply 28 galaxies with water.