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Resources — Stop. Start. Do. I once told a Zen philosopher I was using audio technology to enhance my meditation practice. He told me that was cheating. For 3 years, i've tried all the meditation technologies and iAwake is my favorite. They have a fantastic product, a great price point (much better than the competition) and an extremely friendly customer service team. If you are serious about your mediation practice try the full Pure Meditation Program 3.0. Brain entrainment newbies will see great results and be very happy with The Pure Meditation Starter Kit. Punctuation, symbols & operators in search - Search Help You can use symbols or words in your search to make your search results more precise. Google Search usually ignores punctuation that isn’t part of a search operator. Don’t put spaces between the symbol or word and your search term.

Geometric algebra The geometric product was first briefly mentioned by Hermann Grassmann, who was chiefly interested in developing the closely related exterior algebra which is the geometric algebra of the trivial quadratic form. In 1878, William Kingdom Clifford greatly expanded on Grassmann's work to form what are now usually called Clifford algebras in his honor (although Clifford himself chose to call them "geometric algebras"). For several decades, geometric algebras went somewhat ignored, greatly eclipsed by the vector calculus then newly developed to describe electromagnetism.

Can String Theory Be Tested? « NOVA's Physics Blog: The Nature of Reality For decades, physicists have been trying to combine quantum physics and general relativity into a single, unified theory. One of the leading contenders is string theory, an elegant vision in which matter and the very forces of nature are vibrating and interacting filaments of energy. It sounds great, but there’s a problem: No one can really figure out a way to test string theory. Now, we may finally be on the verge of experimentally confirming—or refuting—some key facets of string theory. String theory describes nature on extremely small size scales and high energies that are all but inaccessible to modern physics. The ideal experiment would provide direct evidence of these strings behaving in ways uniquely predicted by the theory, but that’s not as easy as it sounds, for two reasons.

Graphene High-quality graphene is strong, light, nearly transparent and an excellent conductor of heat and electricity. Its interactions with other materials and with light and its inherently two-dimensional nature produce unique properties, such as the bipolar transistor effect, ballistic transport of charges and large quantum oscillations. At the time of its isolation in 2004,[1] researchers studying carbon nanotubes were already familiar with graphene's composition, structure and properties, which had been calculated decades earlier. The combination of familiarity, extraordinary properties, surprising ease of isolation and unexpectedly high quality of the obtained graphene enabled a rapid increase in graphene research. Andre Geim and Konstantin Novoselov at the University of Manchester won the Nobel Prize in Physics in 2010 "for groundbreaking experiments regarding the two-dimensional material graphene".[2] Definition[edit]

50 Fun (and Free) Engineering Games Anyone Can Play - Top Online Engineering Degree If you have a love of engineering, a little time, and no money, there are options for you. The internet comes through again in these 50 fun and free engineering games anyone can play. Give a try to help improve your drawing, math, logic, and more. Innovative Learning Environments The Innovative Learning Environments (ILE) project has analysed how young people learn. It has studied which conditions and dynamics allow them to be able to learn better. By identifying concrete cases of innovative learning environments from all over the world, ILE has informed practice, leadership and reform through generating analysis of innovative and inspiring configurations of learning for children and young people. The distinctive contribution of the ILE project has been to analyse - with numerous international examples - innovative ways of organising learning at the micro level (learning environment) and how this connects to the meso level (networks and communities of practice) and strategies to implement learning change at the macro, system level.

Relationist Quantum Gravity: ← Quantum Weirdness ↑ → Quantum theory is famous for the paradoxical way in which it describes the universe. More strictly the paradoxes lie in the interpretation of quantum mechanics, not in its mathematical structure. Many declare that interpretation is not the business of physics.

8 math talks to blow your mind Mathematics gets down to work in these talks, breathing life and logic into everyday problems. Prepare for math puzzlers both solved and unsolvable, and even some still waiting for solutions. Ron Eglash: The fractals at the heart of African designs When Ron Eglash first saw an aerial photo of an African village, he couldn’t rest until he knew — were the fractals in the layout of the village a coincidence, or were the forces of mathematics and culture colliding in unexpected ways? Here, he tells of his travels around the continent in search of an answer. How big is infinity? There are more whole numbers than there are even numbers … right? The 13 Most Important Numbers in the Universe - James D. Stein's Cosmic Numbers In the 17th century, scientists understood three phases of matter—solids, liquids and gases (the discovery of plasma, the fourth phase of matter, lay centuries in the future). Back then, solids and liquids were much harder to work with than gases because changes in solids and liquids were difficult to measure with the equipment of the time. So many experimentalists played around with gases to try to deduce fundamental physical laws.

100 Amazing How-To Sites to Teach Yourself Anything Posted by Site Administrator in Online Learning May 7th, 2009 Learning new skills and expanding your knowledge doesn’t have to cost you an arm and a leg. There are loads of free resources on the Web that can help you find instructional videos, tutorials and classes to learn a wide variety of skills from fixing basic car problems to speaking another language. With 100 sites to choose from, you’re bound to find something here that will help you learn just about anything you could want. Reverse Dictionary <div id="needs_javascript"><center><b>Note: The new Reverse Dictionary requires JavaScript.</b><br /><img src=" If you have disabled JavaScript in your browser, please <a href=" it for this site</a> or use the <a href=" version of the reverse dictionary</a> here.</p><p></center><div> How do I use OneLook's thesaurus / reverse dictionary feature? This tool lets you describe a concept and get back a list of words and phrases related to that concept.

What is a gauge? “Gauge theory” is a term which has connotations of being a fearsomely complicated part of mathematics – for instance, playing an important role in quantum field theory, general relativity, geometric PDE, and so forth. But the underlying concept is really quite simple: a gauge is nothing more than a “coordinate system” that varies depending on one’s “location” with respect to some “base space” or “parameter space”, a gauge transform is a change of coordinates applied to each such location, and a gauge theory is a model for some physical or mathematical system to which gauge transforms can be applied (and is typically gauge invariant, in that all physically meaningful quantities are left unchanged (or transform naturally) under gauge transformations). I was asked recently to explain what a gauge theory was, and so I will try to do so in this post. – Coordinate systems –

Calculus I Calculus I (Notes)[Notes][Practice Problems][Assignment Problems] Notice I apologize for the site being down yesterday (October 26) and today (October 27). There was a network issue here that caused the site to only be accessible from on campus. Because it was (apparently) working when I left campus yesterday I didn't realize the site was not accessible from off campus until late last night when it was too late to do anything about it. The good folks here at Lamar jumped right on the problem this morning and got the issue sorted out.

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