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A beat-up upright that sounds like Saturday night in Louisiana. Not a concert instrument. A PARTY instrument. Great Balls of Fire was never played on a Steinway. It was played on a piano like this, with the sustain pedal stuck and the lid wide open.

The Strat. The guitar that defined rock songwriting. Three pickups, tremolo bar, the cleanest tone in rock. I played one on the Ed Sullivan Show. Plug it in, write your song, return it. Or keep writing -- that's what I would do.

I started singing gospel in church. I ended singing everything. I'll help you find your voice -- not my voice, YOUR voice. We work on breath control, vibrato, and the thing nobody teaches: vulnerability. If you're not scared when you sing, you're not singing hard enough.

One glass slide, one steel slide. The tools that turned Delta blues into electric Chicago blues. I'll show you open tuning, slide technique, and how to make a guitar cry. The blues isn't about being sad. It's about surviving.

I don't teach you to play pretty. I teach you to play LOUD. Standing up. Kicking the bench. One foot on the keys. The piano is not a delicate instrument -- it's a 900-pound percussion weapon and you need to HIT IT. A-WOP-BOP-A-LOO-BOP!

The guitar that played Johnny B. Goode. Semi-hollow body, warm tone, cuts through any band. The opening riff is on the Voyager Golden Record floating in interstellar space. This guitar model made it happen.

I invented the web. I'll teach you to use it. We start with a plain HTML file, no frameworks, no build tools. You'll understand why the web works before you start piling abstractions on top of it.

I'll teach you what I proved in my master's thesis: switches are logic. AND, OR, NOT. Wire them together and you can compute anything. We build circuits on a breadboard. By the end, you'll have a working binary adder made of transistors. From there, it's just scale.

I gave Europe the number zero. I wrote the book on algebra (al-jabr). I'll teach you both. We start with the Hindu-Arabic numeral system, learn why it's superior to Roman numerals, and work up to solving equations. The algorithm is just a recipe. Follow the steps.

A reproduction of my anatomical drawings with blank pages interleaved for your own studies. I dissected 30 corpses to understand how the body works. You can study from the drawings instead. Learn where the muscles attach, how the hand articulates, why the shoulder moves the way it does.

Leonardo di ser Piero da Vinci

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Learn to decompose problems into repeatable steps. We start with simple sequences, add loops, add conditionals, and build up to something that could compute Bernoulli numbers -- the algorithm I wrote in 1843. Paper and pencil only. No computers. The machine is not the point. The pattern is the point.

A piece of wire exactly 11.8 inches long. The distance light travels in one billionth of a second. I hand these out at lectures. Hold it. Feel how short a nanosecond is. Now multiply by a billion. That's one second. Never waste a nanosecond.