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Related: PhysicsHyperPhysics Concepts About HyperPhysics Rationale for Development HyperPhysics is an exploration environment for concepts in physics which employs concept maps and other linking strategies to facilitate smooth navigation. For the most part, it is laid out in small segments or "cards", true to its original development in HyperCard. The entire environment is interconnected with thousands of links, reminiscent of a neural network. The bottom bar of each card contains links to major concept maps for divisions of physics, plus a "go back" feature to allow you to retrace the path of an exploration.
Atom Atoms are small enough that classical physics gives noticeably incorrect results. Through the development of physics, atomic models have incorporated quantum principles to better explain and predict the behavior. Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and typically a similar number of neutrons (none in hydrogen-1). Protons and neutrons are called nucleons. Over 99.94% of the atom's mass is in the nucleus. Black hole binge could test general relativity - space - 03 May 2013 CRACKS in Einstein's theory of relativity could be evident at the heart of our very own galaxy. If new calculations are correct, the enormous black hole that sits at the core of the Milky Way should have Saturn-like rings that offer a safe haven from its irresistible gravitational pull. Einstein came out with his theory of general relativity in 1916.
10 Strange Things About The Universe Space The universe can be a very strange place. While groundbreaking ideas such as quantum theory, relativity and even the Earth going around the Sun might be commonly accepted now, science still continues to show that the universe contains things you might find it difficult to believe, and even more difficult to get your head around. Theoretically, the lowest temperature that can be achieved is absolute zero, exactly ?
Physicists chip away at mystery of antimatter imbalance (PhysOrg.com) -- Why there is stuff in the universe—more properly, why there is an imbalance between matter and antimatter—is one of the long-standing mysteries of cosmology. A team of researchers working at the National Institute of Standards and Technology has just concluded a 10-year-long study of the fate of neutrons in an attempt to resolve the question, the most sensitive such measurement ever made. The universe, they concede, has managed to keep its secret for the time being, but they’ve succeeded in significantly narrowing the number of possible answers. Though the word itself evokes science fiction, antimatter is an ordinary—if highly uncommon—material that cosmologists believe once made up almost exactly half of the substance of the universe. When particles and their antiparticles come into contact, they instantly annihilate one another in a flash of light. “The question is, why was there an excess of one over the other in the first place?”
Creating Quantum Matter By Marlene Cimons, National Science Foundation Experimental physicist Markus Greiner always is searching for new and interesting states of matter. “In the long run, these states of matter might lead to new materials with fantastic properties you can’t even imagine yet,” he says. Greiner, associate physics professor at Harvard University and the recent winner of a prestigious $500,000 “no strings attached” MacArthur Fellowship--popularly known as a “genius” grant--wants to better understand the spatial organization of ultra cold atoms with the goal of learning more about condensed matter physics and quantum mechanics.
3 New Heavy Elements Named: Darmstadtium, Roentgenium, Copernicium This article was updated Sunday 11/6 2:00pm. The periodic table of elements just got a bit heftier today (Nov. 4), as the names of three new elements were approved by the General Assembly of the International Union of Pure and Applied Physics. Elements 110, 111 and 112 have been named darmstadtium (Ds), roentgenium (Rg) and copernicium (Cn). How to turn darkness into light Quantum mechanics tells us that the vacuum is not empty but is filled with virtual particles that pop into and out of existence. Normally these particles are hidden from our view, but now a team of physicists has used the electrical equivalent of an ultrafast mirror to convert virtual photons into real electromagnetic radiation. Known as the dynamical Casimir effect, it was first predicted more than 40 years ago.
Names Proposed for New Elements on Periodic Table The International Union of Pure and Applied Chemistry — the scientific body that is the keeper of the list of elements — unveiled Thursday the proposed names for elements 114 and 116: flerovium (atomic symbol Fl) and livermorium (atomic symbol Lv). If you do not like them, now is the time to voice your objections. The chemistry union will have a five-month comment period open to anyone. “We believe we have to let the world respond,” said Terry A. List of unsolved problems in physics Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result. The others are experimental, meaning that there is a difficulty in creating an experiment to test a proposed theory or investigate a phenomenon in greater detail. Unsolved problems by subfield[edit] The following is a list of unsolved problems grouped into broad area of physics.[1]
5000 free math, physics, and engineering video tutorials and lectures Here are the collections of sites with math, physics, engineering, and other sciences video tutorials. Some sites also contains non-science videos as well. If you find a site with more than 50 videos, please inform me so I could include it on the list. Khan Academy – more than 2100 2600 not only for math but also includes other subjects such as economics, chemistry, physics and other fields. The math videos range from adding integers up to elementary calculus. Brightstorm - more than 500 math videos in algebra, geometry, Precaculus and Calculus.Just Math Tutorials – more than 1000 videos on algebra, geometry, trigonometry, calculus, differential equations, and linear algebraMIT Open Courseware – videos about math, engineering, sciences, and other fields.Free Video Lectures – more than 700 (excluding Khan Academy’s which they also listed) videos.