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23 results for “lemons”
Color Theory & Photography Demo -- First Color Photo
In 1861, I produced the first color photograph by combining three black-and-white photos taken through red, green, and blue filters. I will demonstrate the principle. Every screen you look at uses this method. RGB. Three colors make a world. Includes hands-on experiments with color mixing and filters.
Viking Navigation Workshop -- Stars, Sunstones & Currents
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.
Tanegashima Matchlock Musket (Replica)
Japanese matchlock musket, based on Portuguese originals that arrived in 1543 -- the year I was born. Within 50 years, Japan had more firearms than any country in Europe. At Sekigahara, guns decided the battle. This replica fires black powder blanks for demonstration.
Optics Demonstration -- Prisms, Spectra & Light
I will demonstrate how white light splits into a spectrum through a glass prism, and how a second prism recombines it. This experiment settled a 2,000-year debate. Light is not pure -- it is a mixture of colors. Includes hands-on experiments with reflection, refraction, and Newton rings.
Laws of Motion Workshop -- Forces & Momentum
Small group (max 5). Hands-on experiments demonstrating all three laws of motion. Newton cradle, collision carts, spring scales, inclined planes. You will measure forces, predict outcomes, and verify them. Every bridge, every car, every rocket uses these three laws.
Swan-Neck Flask Set (Borosilicate, 3-Piece)
Three hand-blown borosilicate glass flasks with swan-curved necks. The design that proved microbes come from the environment, not thin air. Perfect for classroom demonstrations. Fragile -- handle with the respect you would give a 160-year-old argument settler.
Sales Training Masterclass -- Door-to-Door to Empire
Small group (max 6). I trained 20,000 Walker Agents. The secret is demonstration. Do not tell people your product works -- show them. Do not sell features -- sell transformation. I will teach you the Walker pitch: personal story, live demonstration, satisfied customer testimonial, close.
X-Ray Crystallography Demonstration
How we see molecules. I will explain diffraction patterns, Bragg law, and how a flat photograph reveals three-dimensional structure. We will analyze diffraction patterns from simple crystals. Photo 51 was not lucky -- it was 100 hours of exposure with perfect fiber alignment. Technique matters more than equipment.
Chemistry of Energetic Materials -- Safe Demonstration
Safe demonstrations of exothermic reactions, combustion chemistry, and energy release. No explosives -- but you will understand why nitroglycerin is unstable and how adding diatomaceous earth makes it safe to handle. The chemistry of energy storage and release underpins everything from batteries to rockets.
Traditional Olive Press (Manual)
Hand-operated olive press, traditional Sicilian design. Granite millstone, wooden frame, steel screw. Produces 2-3 liters of oil per batch. For small batches and educational demonstrations.
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.
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