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One-on-one tutoring in classical mechanics. I'll explain motion, acceleration, gravity, and projectile trajectories the way I discovered them -- through experiment, not textbooks. We'll use inclined planes, pendulums, and water clocks. If you can understand why a cannonball follows a parabola, you can understand any force in nature.

Galileo Galilei

🇮🇹 🌐

Professional-grade Geiger-Muller counter, recently calibrated. Detects alpha, beta, and gamma radiation. Includes headphones for the characteristic clicking sound. When Pierre and I first heard the clicks from our radium sample, we knew we had something the world had never seen.

Marie Sklodowska Curie

🇵🇱 🇫🇷 🇷🇺

Short sinew-backed bow, 45-pound draw, optimized for mounted use. Twenty dogwood arrows with iron and flint points. This is what we hunted buffalo with from horseback at full gallop -- one arrow could pass through a buffalo at close range.

Sitting Bull

🇬🇧

Desktop cloud chamber that makes radioactive particle tracks visible. Pour in isopropyl alcohol, cool the base, and watch cosmic rays and natural radiation leave vapor trails in real time. It's like seeing the invisible forces that pass through your body every second. Mesmerizing and educational.

Marie Sklodowska Curie

🇵🇱 🇫🇷 🇷🇺

Make your own oil-based printing ink from linseed oil, soot, and pigments. Water-based ink was fine for stamps but terrible for type -- it beaded up on metal. I had to invent a new ink. You'll leave with a jar of ink good enough to print with. Wear old clothes.

Johannes Gutenberg

🇩🇪 🌐

Wound cleaning, bandaging, splinting, infection prevention. Tip: Wash your hands. In 1854, army surgeons did not wash between patients. I made them. The death rate dropped 40 percent. Hygiene is not optional.

Florence Nightingale

🇬🇧 🇫🇷 🇩🇪

Concentric walls, flanking towers, murder holes, killing grounds. I designed Chateau Gaillard in Normandy -- three baileys, each commanding the one below. Philip took it by climbing through the latrine chute. Tip: Design for the attack you cannot imagine, not the one you expect.

Richard the Lionheart

🇫🇷 🇬🇧 🌐

The iklwa -- named for the sucking sound it makes when pulled from a body. Short-hafted, broad-bladed, designed for close combat behind the cowhide isihlangu shield. The shield hooks the enemy's shield aside, the iklwa goes in underneath. I changed warfare in Africa with this weapon.

Shaka Zulu

🌐

How to build and operate a clandestine network. Safe houses, codes, route planning, compartmentalization (each station knows only the next), vetting members. The Railroad operated for decades under the noses of slavers and federal marshals. Tip: Trust is your most valuable and most dangerous resource. Verify before you trust.

Harriet Tubman

🇬🇧

Asymmetric Hunnic composite recurve bow with bone siyahs (ear reinforcements). Smaller than the Mongol bow, faster to draw, devastating at close range from horseback. Includes 20 bone-tipped arrows. The bone tip splinters inside the wound -- a cruelty, but effective.

Attila the Hun

🇭🇺 🌐 🇬🇷

Two days in the desert with a knife and the clothes on your back. Finding water from plants, catching small game, building shade shelters, navigating by stars and landmarks. The Chiricahua Apache lived in this desert for centuries. If you listen to the land, it will keep you alive.

Geronimo

🇬🇧

How the Norse navigated the open Atlantic without compass or sextant. Sunstones (calcite crystals) to find the sun on cloudy days, star patterns, wave reading, bird sighting. I sailed from Scandinavia to Paris to the Mediterranean. Tip: The sea has patterns. Learn them and the ocean is a road, not a barrier.

Ragnar Lothbrok

🇸🇪 🇬🇧