Get Started Reading Books and Articles on the Cheap

…. Or, visit your local University’s library for an even grander selection. Buy very, very cheap books. Ok, so this one’s almost free. There are hundreds of books selling at less than 1 cent on Amazon. They’re not all worth a penny, but there are some real jewels among the noise, which you can get for only the price of shipping. To find them, try browsing by subject, and then selecting “Sort by Price: Low to High.” Reading With Questionable Scruple…

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Get Started Learning General Relativity Online

…s and philosophy of general relativity, all of which is available for free online. If you know of any online resources that are not on this list, suggest them in the comments and I will add them to the list! Contents Non-mathematical introductions to general relativity Mathematical introductions to general relativity Philosophy of general relativity Other general relativity references. Non-mathematical introductions to general relativity Einstein…

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Special: What’s With the Economy.

…o make and sell burgers in. The wealthy Scrooge McDuck had enough money to buy buildings. So they struck the following deal. McDuck gave BurgerBee the money to buy a building for their burger joint (say, 100,000 dollars). In return, BurgerBee gave McDuck a little certificate, which says that BurgerBee will pay McDuck MUCH MORE than the original amount (say, 200,000 dollars). But the payments are made in small amounts, every month, over the course…

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Spatial translations in quantum mechanics

…ansformations that preserve probabilities are the unitary ones. So, we can capture this homogeneity precisely by say that the spatially translated position operators are related by a unitary transformation,     More can be said about these translation operators . If we think of the infinite string as continuous, then we’ll want to have a continuous collection of operators , one for each real number . We’ll also want to capture the additive relatio…

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2009 Nobel Laureates in Physics

the 60’s, Kao was able to show that this attenuation was the result of the absorption and scattering of light, caused by metal ions in the glass. The problem was thus to figure out how to develop more pure glass fibers. Kao correctly argued that this could be done using silica. His research on the problem later led to the development of the super-efficient optical fibers we know today. Boyle and Smith are being recognized for their invention of th…

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