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Astronomy Night -- Planets, Moons & Stars - product photo
Training
€15 per session

Astronomy Night -- Planets, Moons & Stars

Evening observation session (weather permitting). I'll show you Jupiter's moons, Saturn's rings, the craters of our Moon, and the phases of Venus. Bring warm clothes. Tip: Your eyes need 20 minutes to adapt to the dark. No phone screens. Learn the constellations first, then use the telescope. Context before magnification.

Violin (German Make, 1920s, Concert Quality) - product photo
Rent
€8 per day

Violin (German Make, 1920s, Concert Quality)

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.

Mamluk Chain Mail & Conical Helmet Set - product photo
Rent
€10 per day

Mamluk Chain Mail & Conical Helmet Set

Riveted chain mail hauberk and conical helmet with nasal guard. Lighter than Crusader plate, better in the heat, flexible enough for mounted archery. My Mamluks wore gear like this at Hattin.

Plains Horseback Riding -- Bareback & War Pony - product photo
Training
€22 per session

Plains Horseback Riding -- Bareback & War Pony

Bareback riding on the open plains. No saddle, no stirrups -- just you and the horse. The Lakota were among the finest horsemen on Earth. Knee signals, voice commands, shooting from horseback. Tip: The horse must trust you before it will carry you into danger. Earn the trust first.

Uprising Leadership Workshop -- Building a Coalition - product photo
Training
€16 per session

Uprising Leadership Workshop -- Building a Coalition

How to unite fractious tribes against a common enemy. Managing egos, distributing resources, maintaining alliance cohesion. Tip: People join a cause for different reasons. Give each tribe their reason. But give them ONE leader and ONE plan.

Full Plate & Mail Crusader Armor Set - product photo
Rent
€14 per day

Full Plate & Mail Crusader Armor Set

Chain mail hauberk over padded gambeson, with plate reinforcement at shoulders and knees. Great helm with cross visor. About 55 pounds total. I wore heavier at Arsuf in desert heat. If you can fight in this, you can fight in anything.

Underground Railroad Seminar -- Building Resistance Networks - product photo
Training
€20 per session

Underground Railroad Seminar -- Building Resistance Networks

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.

Chemistry Lab Fundamentals -- Precision & Safety - product photo
Training
€20 per session

Chemistry Lab Fundamentals -- Precision & Safety

Small group (max 4). Proper lab technique: titration, crystallization, fractional precipitation, safe handling of chemicals. I'll teach you the way I learned at the Sorbonne -- hands on, precise, no shortcuts. You will weigh to four decimal places. You will label every beaker. You will keep a proper lab notebook. Sloppiness in a lab kills people. I should know.

Scientific Method Workshop -- Question Everything - product photo
Training
€18 per session

Scientific Method Workshop -- Question Everything

Small group (max 6). Hands-on experiments: pendulums, inclined planes, falling objects. We'll replicate my actual experiments from the 1600s. You'll learn to form hypotheses, design experiments, collect data, and draw conclusions. Aristotle said heavy objects fall faster than light ones. I proved him wrong. You'll prove him wrong too, with your own hands.

Physics Tutoring -- Motion, Gravity & Forces - product photo
Training
€20 per session

Physics Tutoring -- Motion, Gravity & Forces

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.

Celtic Longsword & Round Shield (Iron Age Replicas) - product photo
Rent
€7 per day

Celtic Longsword & Round Shield (Iron Age Replicas)

Iron Age Celtic longsword (30-inch blade for slashing) and lime-wood round shield with iron boss. The Celts fought with fury and individual skill. The Romans fought with system. Both have their place. Weighted for training.

War Table Sand Map (Campaign Simulation Kit) - product photo
Rent
€10 per day

War Table Sand Map (Campaign Simulation Kit)

Traditional Chinese sand table for war gaming. Sculpt terrain, place forces, simulate campaigns. Includes miniature infantry, cavalry, and fortification markers. Better than any screen -- you feel the terrain with your hands.

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