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Expressive Painting Workshop -- Color as Emotion - product photo
Training

Expressive Painting Workshop -- Color as Emotion

I don't teach technique. I teach seeing. We go outside, we look at the sky, and I show you that it's not blue -- it's cobalt and ultramarine and violet and green, swirling. The color is the feeling. The brushstroke is the heartbeat. If your painting looks like a photograph, you're not painting -- you're copying.

€15 common.per_session
Year-Round
Art & Crafts
Vincent Willem van Gogh 🇳🇱 NL native 🇫🇷 FR C1
Self-Portrait Workshop -- Painting Your Truth - product photo
Training

Self-Portrait Workshop -- Painting Your Truth

Forget flattering yourself. Paint what's real. The scars, the joy, the fury, the love. We work in oil or acrylic on small canvases. I'll teach you about color symbolism from Mexican folk art -- what red means, what blue means, why I put monkeys and parrots in my paintings. Bring a mirror. Bring honesty.

€15 common.per_session
Year-Round
Art & Crafts
Magdalena Carmen Frida Kahlo Calderon 🇪🇸 ES native 🇬🇧 EN B2
Mexican Folk Art Supplies -- Retablo Painting Kit - product photo
Rent

Mexican Folk Art Supplies -- Retablo Painting Kit

Small tin sheets, oil paints, fine brushes. Everything for painting retablos -- the small votive paintings I collected and was inspired by. Paint your miracle, your gratitude, your survival. The format is tiny. The feeling is enormous.

€5 per day
Year-Round
Art & Crafts
Magdalena Carmen Frida Kahlo Calderon 🇪🇸 ES native 🇬🇧 EN B2
Multimeter (Fluke 87V Industrial) - product photo
Rent

Multimeter (Fluke 87V Industrial)

The same model I'd use if I were debugging hardware today. Measures voltage, current, resistance, capacitance, frequency, temperature. If you can measure it, you can fix it. If you can't measure it, you're guessing.

€5 per day
Year-Round
Electronics
Grace Brewster Hopper 🇬🇧 EN native 🇩🇪 DE B1
Debugging Masterclass -- Systematic Fault Isolation - product photo
Training

Debugging Masterclass -- Systematic Fault Isolation

I'll teach you to debug anything -- hardware, software, processes, organizations. The method is the same: isolate, measure, hypothesize, test. Stop guessing. Start measuring. And tape the bug into the logbook when you find it.

€15 common.per_session
Year-Round
Electronics
Grace Brewster Hopper 🇬🇧 EN native 🇩🇪 DE B1
Circuit board close-up - teaching electronics
Give Away

Nanosecond Wire (11.8 inches) -- Teaching Aid

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.

Free
Year-Round
Electronics
Grace Brewster Hopper 🇬🇧 EN native 🇩🇪 DE B1
Enigma Machine Replica (3-Rotor, Functional) - product photo
Rent

Enigma Machine Replica (3-Rotor, Functional)

Working replica of the Wehrmacht 3-rotor Enigma. 159 quintillion possible settings. Type a letter, the rotors turn, the lampboard lights up the encrypted letter. I broke it with logic, not brute force. Try to crack a message yourself -- I'll give you hints.

€8 per day (+€50 deposit)
Year-Round
Electronics
Alan Mathison Turing 🇬🇧 EN native 🇩🇪 DE B2
Cryptography & Logic Workshop - product photo
Training

Cryptography & Logic Workshop

Learn the fundamentals of code-breaking. Caesar ciphers, substitution ciphers, frequency analysis, and the principles behind Enigma. No math degree required -- just patience and the willingness to think backwards.

€12 common.per_session
Year-Round
Art & Crafts
Alan Mathison Turing 🇬🇧 EN native 🇩🇪 DE B2
Running Shoes (Marathon Training) - product photo
Rent

Running Shoes (Marathon Training)

Good trail runners. I nearly qualified for the 1948 Olympics with a 2:46 marathon. Running clears the mind better than any computer. Take them for a long run and think about impossible problems.

€3 per day
Year-Round
Sports & Fitness
Alan Mathison Turing 🇬🇧 EN native 🇩🇪 DE B2
Jacquard Loom Cards (Sample Set + Reader) - product photo
Rent

Jacquard Loom Cards (Sample Set + Reader)

A set of Jacquard punch cards and a demonstration reader. These are the ancestors of computer programs -- patterns encoded in holes. The loom doesn't think. It follows the card. The card is the algorithm. Babbage borrowed the idea. I wrote the first algorithm for it.

€4 per day
Year-Round
Crafts
Ada Augusta Lovelace 🇬🇧 EN native 🇫🇷 FR C1
Algorithm Design Workshop -- Think Like Ada - product photo
Training

Algorithm Design Workshop -- Think Like Ada

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.

€12 common.per_session
Year-Round
Art & Crafts
Ada Augusta Lovelace 🇬🇧 EN native 🇫🇷 FR C1
Brass Gears & Mechanical Parts (Assorted Box) - product photo
Rent

Brass Gears & Mechanical Parts (Assorted Box)

A box of precision brass gears, cams, shafts, and springs. The same components I designed for the Analytical Engine. Build a clock, a music box, or a mechanical calculator. Or redesign them three times and never finish. Either way, the gears are beautiful.

€6 per day (+€30 deposit)
Year-Round
Tools
Charles Babbage 🇬🇧 EN native 🇫🇷 FR B2

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