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You should always know how to sort your lists. Luckily, Python provides you with a couple options: the sort method and the sorted function. This tutorial by Learn to Program covers both and explains when to use each. At the end of these last few tutorials, you should be extremely comfortable making and modifying lists in your Python code.


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Are you a seasoned guitarist always on the lookout for advice? Or maybe you’re a frustrated beginner? Here’s a small tip that will last a lifetime of guitar playing: curl the last knuckle of each fretting finger. This helps you to strum chords efficiently and hit every necessary note. Check out this lesson to fully comprehend the importance of the curl.


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Find out how accessible reading music can be. This lesson on how to read tabs will cause you to pick up that old guitar and learn a few new songs. First, you’ll see how the strings are positioned in a tab image and learn to identify fret numbers. Then, learn whether to play notes simultaneously or in a series. Before you know it, you’ll be fluent in guitar tabs.


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Programming a website and want to execute a specific action or command more than once? In this first of three parts on functions from Learn To Program's JavaScript series, learn how to create a function, which is a block of reusable code you can call in your html. Practice creating functions that can write a greeting or other message and attaching it to your JavaScript file.


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Elif statements allow you to stretch your data comparisons into infinity! Sandwiched between if and else statements, elifs allow you to check for multiple conditions, provided that the if statement’s condition is not met. Once you have mastered if, else and elif statements with this tutorial by Learn to Program, you will be on your way to making useful, flexible Python code.


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Are you having trouble knitting in the round? Learn how to make a smooth color change in circular knitting - known to the experts as a jogless color change. Use a knitting marker and learn to knit your first color change row into the previous color to disguise the knitting spiral. Tie up loose ends sooner than later and thread them to duplicate the back of a stitch for a smooth seam. Here’s to a seamless change!


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You don’t have to pay for an expensive case to protect your glasses. Make one yourself with this lesson on how to make a glasses holder out of a tie. Even if you’re prone to losing them around the house - use a bright patterned tie and your glasses will never be lost. All you need is needle, thread, scissors, a button and a cheap old tie! It’s a quick and easy do-it-yourself craft that you’ll be telling your friends about.


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Why bend over backwards- or bend over at all- to pick up a tennis ball? Lock and Roll tennis teaches you how to perform Rafael Nadal's sweet trick for getting the tennis ball off the ground using just his feet. It's a stylish, hip, and effortless way to retrieve a ball, especially when you're practicing your tennis swings and have a lot of balls to collect!


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The anatomy of an acoustic guitar and a human body have more similarities than you would think. This lesson shows you how to identify all parts of an acoustic guitar, including the head, the neck, and the body. You’ll understand directional terminology such as “up” the neck and “down” the neck, and explore the basics of electronic extras.


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Pablo Picasso is well known for his unrealistic portraits and figures, but what exactly do his stylistic choices mean? In this art history lesson on “Les Demoiselles d’Avignon,” learn about the culture of 1907, and what a painting of five naked women in a brothel has to do with Einstein. True art is often a commentary on the world in which it is produced—learn why Picasso, despite being an accomplished painter in the traditional sense, chose to paint in his own abstract and angular style.


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Life's full of tough choices, and sometimes there's not just one right answer: there are infinitely many. In this Game Theory 101 lesson by William Spaniel, learn about scenarios in which a set of mixed strategies can lead to an infinite number of Nash equilibria. Review concepts like strict dominance, pure strategy Nash equilibria, and partially mixed strategies - and discover how one player's pure strategy can result in another player's indifference.


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Are you interested in playing guitar? Check out this lesson for advice on posture and picking techniques. First, you’ll learn the details of folk posture and classical posture; both have their own advantages. Next, find out how to properly hold a pick. Before you know it, you’ll be picking comfortably all the time.


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Have you ever lost points on a game theory assignment or test because you came to a slightly wrong conclusion? In this installment of his series on Game Theory, William Spaniel reveals one of the most frequent mistakes game theory students make: expressing mixed strategy Nash equilibria as decimals, not fractions. William demonstrates why 1/3 is not the same as .33, supporting his claim that when solving game theory equations, its always safe to stick with fractions.


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War: what is it good for? Find out using backward induction to solve the Escalation Game, courtesy of William Spaniel's Game Theory 101 lesson. Should State 1 accept the status quo, or threaten State 2? If threatened, should State 2 concede, or escalate to war? Learn how each state can work backward to determine its opponent's optimal strategies, figure out its maximum payoff at each decision point, and discover why peace really is the answer.


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Why wear boring old flip flops when you could customize them to your own style? Sophie's World teaches you how to decorate flip flops with felt, markers, fleece, or bling - such as beads, rhinestones, and sequins. This is a great craft for kids or adults, and when you're finished you'll have a new glamorous or extra cozy pair of homemade sandals!


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Learning how to pick guitar chords resembles raking leaves: easy does it. Follow along with Your Guitar Sage and discover how to produce an open, whole sound with these basic chord techniques. This lesson covers where to place your fingers, how to arpeggiate in order to hear muted notes, and how to adjust your fingers to obtain a full chord sound.


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Do we have free will, or do we just boil down to particles following the laws of physics? Professor Massimo Pigliucci from Plato Footnote leads us into a world where science and philosophy collide by discussing the concept of reductionism. This lesson also includes an explanation of the difference between ontological and epistemological reductionism, and how these debates come to bear on ideas of emergent properties, morality, and free will.


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Don’t think you’re cut out for playing guitar? Think again! Everyone gets frustrated. Even Jimi Hendrix wasn’t a rock god from day one. Check out this lesson for advice on learning how to play guitar and the encouragement to keep doing it. You’ll surely want to continue pickin’ after hearing these words of wisdom. Practice and persist!


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What is metaphysics, and what do metaphysicians discuss? How does metaphysics overlap with science? Plato Footnote introduces you to two robots having just this conversation. Join in for the chance to learn about issues of existence and realism, with a focus on questions of time, causation, and general relativity. Note: This lesson is crucial to watch before attempting any time travel, as it explains causal loops.


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