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. In his proposal, time and space can be converted into one another, with a varying speed of light as the conversion factor. As Shu writes in his paper, the newly proposed models have four distinguishing features:
Is the universe a doughnut?
Credit: iStockphoto Someday spacecraft will be powerful enough perhaps to journey at extraordinary speeds, spanning the vast interstellar voids. Our technology might develop until we become a vast, powerful intergalactic society, capable of resolving the deepest quandaries ever known.
XP Run Commands - Short Cuts 1 - The New Tech
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Astronomy Video Lectures
Hey guys! This month I have a collection of cosmology video lectures and astronomy video lectures. They include: Precision Cosmology.
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.
Cymatics
Resonance made visible with black seeds on a harpsichord soundboard Cornstarch and water solution under the influence of sine wave vibration Cymatics (from Greek: κῦμα "wave") is the study of visible sound co vibration, a subset of modal phenomena. Typically the surface of a plate, diaphragm, or membrane is vibrated, and regions of maximum and minimum displacement are made visible in a thin coating of particles, paste, or liquid.[1] Different patterns emerge in the excitatory medium depending on the geometry of the plate and the driving frequency. The apparatus employed can be simple, such as the old Chinese spouting bowl, or Chinese singing fountain, in which copper handles are rubbed and cause the copper bottom elements to vibrate.
The Aikido FAQ Introduction To Aikido
What is Aikido? Whenever I move, that's Aikido. O Sensei, Morihei Ueshiba Aikido is a Japanese martial art developed by Morihei Ueshiba (often referred to by his title 'O Sensei' or 'Great Teacher'). On a purely physical level it is an art involving some throws and joint locks that are derived from Jujitsu and some throws and other techniques derived from Kenjutsu. Aikido focuses not on punching or kicking opponents, but rather on using their own energy to gain control of them or to throw them away from you.
Senator, Astronaut and NASA Advisory Council Chair Harrison Schmitt on “A Trip to the Moon” » Pardee Center for the Study of the Longer-Range Future
VIDEO: Pardee Center Conference April 12, 2007 In this wide-ranging talk at the Pardee Center Conference on “The Future of Space Exploration”, Senator Harrison Schmitt, Apollo 17 Astronaut and NASA Advisory Council Chair, shares his own experiences of “a trip to the moon” and weaves in with this engaging and personal account a discussion of some of the policy challenges facing space exploration, now and into the future. He looks back at his own personal explorations in space and describes what it feelslike to be in space. As he puts it: “Being there is the essential human ingredient.” The talk is followed by questions from the audience.
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.
Inertial frame of reference
All inertial frames are in a state of constant, rectilinear motion with respect to one another; an accelerometer moving with any of them would detect zero acceleration. Measurements in one inertial frame can be converted to measurements in another by a simple transformation (the Galilean transformation in Newtonian physics and the Lorentz transformation in special relativity). In general relativity, in any region small enough for the curvature of spacetime to be negligible, one can find a set of inertial frames that approximately describe that region.[2][3] Physical laws take the same form in all inertial frames.[4] By contrast, in a non-inertial reference frame the laws of physics vary depending on the acceleration of that frame with respect to an inertial frame, and the usual physical forces must be supplemented by fictitious forces.[5][6] For example, a ball dropped towards the ground does not go exactly straight down because the Earth is rotating.
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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.
CERN
For the company with the ticker symbol CERN, see Cerner. For the rocket nozzle, see SERN. Coordinates: The European Organization for Nuclear Research (French: Organisation européenne pour la recherche nucléaire), known as CERN (/ˈsɜrn/; French pronunciation: [sɛʁn]; derived from "Conseil Européen pour la Recherche Nucléaire"; see History) is a European research organization that operates the largest particle physics laboratory in the world. Established in 1954, the organization is based in the northwest suburbs of Geneva on the Franco–Swiss border, (
