Esplora Oggetti

Two-hour session. No equations (well, one equation). I'll explain special and general relativity using the same thought experiments I used to discover them. Riding a beam of light. Trains and lightning strikes. Falling elevators. If you can imagine it, you can understand it. Tip: Relativity is not abstract. Your GPS uses it. Without relativistic corrections, your navigation would be off by 10 kilometers per day.

Albert Einstein

🇩🇪 🇬🇧 🇫🇷

My violin. Well, a replica of my favorite one. I named the original Lina. Mozart and Bach -- that's what I play when I'm stuck on a physics problem. The music reorganizes my thinking. If you can play, borrow it. If you can't, I'll give you a beginner lesson. Badly. I'm a better physicist than violinist.

Albert Einstein

🇩🇪 🇬🇧 🇫🇷

Navigating by stars, moss, river direction, and landmarks in total darkness. I moved hundreds of people through swamps and forests at night with no map. The North Star was our compass. The drinking gourd song was our code. Tip: Move when the dogs cannot track -- in rain, through water, downwind. The night is your friend if you know her.

Harriet Tubman

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One-on-one mentoring for anyone without a formal science education who wants to learn. I had no degree, no university, no connections. I had a library and a willingness to work harder than anyone in the room. I will help you build a self-study plan and find your Humphry Davy -- the person who opens the first door.

Michael Faraday

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My school: long sword in one hand, short sword in the other. Most swordsmen use two hands on one blade. I use one hand on each. The long sword attacks, the short sword defends and creates openings. It requires years. We start today. Tip: Do not grip the sword tightly. Hold it like a bird -- firm enough it cannot escape, gentle enough you do not crush it.

Miyamoto Musashi

🇯🇵

Full-size replica of my war banner -- white linen, painted angels, fleur-de-lis, JHESUS MARIA. I carried this instead of a sword. I told the court: I loved my banner forty times more than my sword. The banner never killed anyone. It gave men something to follow.

Joan of Arc

🇫🇷

When to burn your own land to starve the enemy. The hardest strategic decision. Case studies: my campaign against Caesar, Russia against Napoleon, Russia against Hitler. Tip: Scorched earth works when your enemy's supply line is longer than yours. It fails when your people lose faith before the enemy loses food.

Vercingetorix

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Short mulberry bow and stone-headed war club. The Apache bow is compact -- made for horseback and tight canyon fights. The war club is last resort, close quarters. Light enough to carry all day, deadly enough to end any argument.

Geronimo

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How to command a Roman legion: manipular formations, signal systems, camp construction, forced marches. My legions marched 25 miles in five hours, then built a fortified camp before dinner. Tip: Discipline is not cruelty. It is the reason 5,000 men can defeat 50,000.

Julius Caesar

🌐 🇬🇷

Hands-on workshop building a Roman marching camp. Ditch, rampart, palisade, gates, interior layout. At Alesia I built two walls -- one facing in to trap Vercingetorix, one facing out to stop his relief army. Tip: If you can build, you can hold. If you can hold, you can win.

Julius Caesar

🌐 🇬🇷

The naginata -- a curved blade on a long pole, the traditional weapon of the onna-bugeisha (female warrior). Sweeping cuts, thrusts, and the devastating ankle strikes that unhorse mounted samurai. I will teach you the kata and free sparring. Tip: Reach defeats strength. Keep them at naginata distance and they cannot touch you with a sword.

Tomoe Gozen

🇯🇵

The Siege of Tyre took seven months. I built a causeway across the sea to reach an island fortress. Rams, towers, torsion catapults, mining tunnels. Every wall has a weakness. Your job is to find it before your supplies run out.

Alexander the Great

🇬🇷 🌐