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Speed Mathematics. People who excel at mathematics use better strategies than the rest of us, they don't necessarily have better brains.

Speed Mathematics

We teach simple strategies that can have you multiplying large numbers in your head, doing mental long division, even squaring and finding square roots of numbers off the top of your head. And here is a secret. People equate intelligence with mathematical ability. In other words, if you are able to do lightning calculations in your head, people will think you are intelligent in other areas as well. Spacetime Continuum - Einstein's Relativity, Space, Time, Quantum Gravity, and Quantum Physics. Introduction to the Spacetime Continuum, Einstein's Relativity, and Quantum Theories for beginning and advanced visitors, with Links to the Best Websites on Quantum Gravity, Higg's Boson, Dark Matter and Energy, plus a discussion of the possibility that we live in an essentially atemporal universe.

Spacetime Continuum - Einstein's Relativity, Space, Time, Quantum Gravity, and Quantum Physics

The Links are the most valuable feature of this website, including a link to the NOVA series Fabric of the Cosmos. If you are looking for a few paragraph answer to the question "What is Space-Time? " Dr. 100 Incredible Lectures from the World's Top Scientists. Posted on Thursday June 18, 2009 by Staff Writers By Sarah Russel Unless you’re enrolled at one of the best online colleges or are an elite member of the science and engineering inner circle, you’re probably left out of most of the exciting research explored by the world’s greatest scientists.

100 Incredible Lectures from the World's Top Scientists

But thanks to the Internet and the generosity of many universities and online colleges, you’ve now got access to the cutting edge theories and projects that are changing the world in this list below. If you’re looking for even more amazing lectures, check out our updated list for 2012 with more talks from great minds. General. How to Calculate a Square Root by Hand: 21 steps (with pictures) Edit Article CalculatorUsing Prime FactorizationFinding Square Roots Manually Edited by NatK, Maluniu, Luís Miguel Armendáriz, Webster and 44 others In the days before calculators, students and professors alike had to calculate square roots by hand. Several different methods have evolved for tackling this daunting process, some giving a rough approximation, others giving an exact value. To learn how to find a number's square root using only simple operations, see Step 1 below to get started.

Ad Steps. Free Learning Resources on various subject categories at LearnersTV.com. Richard Feynman videos. Videos.

Richard Feynman videos

8 math talks to blow your mind. Mathematics gets down to work in these talks, breathing life and logic into everyday problems.

8 math talks to blow your mind

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?

Free Physics Books. 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.

Can String Theory Be Tested? « NOVA's Physics Blog: The Nature of Reality

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. David Tong: Teaching.

List of Free Books. Fundamentals of quantum mechanics. Calculus I. Show Mobile NoticeShow All NotesHide All Notes You appear to be on a device with a "narrow" screen width (i.e. you are probably on a mobile phone).

Calculus I

The power of quantum biology. A scientific response to the big question—“What is life?”

The power of quantum biology

—may remain elusive for some time, but research in the quickly emerging area of “quantum biology” offers intriguing possibilities. As the name suggests, quantum biology is the application of quantum mechanics to the biological sciences. South African and overseas postgraduate students and researchers gathered recently to discuss this new field. The National Institute for Theoretical Physics and the Centre for Quantum Technology at the University of KwaZulu-Natal ­convened a 10-day summer school earlier this year to consider this interdisciplinary field’s potential. The school drew participants from Europe, Singapore, the United Kingdom and the United States.

Quantum theory traditionally describes phenomena occurring in inanimate systems on scales ­millions of times smaller than the capable re-solution of the naked eye, consisting of objects such as photons, electrons and atoms. Brief Answers to Cosmic Questions. Structure of the Universe Does the Universe have an edge, beyond which there is nothing?

Brief Answers to Cosmic Questions

Q. How Smart Was Einstein? A. Really Smart. June / July 2005 By: Thomas Levenson Volume 3 Number 3 There is a parlor game physics students play: Who was the greater genius?

Q. How Smart Was Einstein? A. Really Smart

Math - College Level Archive. The Ultimate Field Guide to Subatomic Particles. This Explanation of the Multiverse Is a Heavy But Delicious Sunday Brunch. The Vega Science Trust - Richard Feynman Video - The Douglas Robb Memorial Lectures - Part 1. Discover Ayn Rand: Ayn Rand interviewed by Alvin Toffler for Playboy, 1964. 90 Minutes With Richard Feynman. The name Richard Feynman should at least sound familiar, if not because of his work in physics then because his zombie is such a big fan of the Mythbusters.

Either way, the BBC Horizon documentary “Richard Feynman-No Ordinary Genius” is well worth your time, and deserves more than the mere 150,000 views it has garnered. Like Carl Sagan and Neil deGrasse Tyson, Feynman was a talented thinker, teacher, and speaker–the essential skill set of any science rock star. But the video makes it clear that Feynman’s greatest gift was his unique, even eccentric personality, which allowed him to approach difficult scientific problems in new ways.