Esplora Oggetti
112 risultati per “Handmade”
Orbital Mechanics Tutoring -- Getting to Space
One-on-one tutoring in spaceflight physics. Escape velocity, orbital insertion, Hohmann transfers, gravity assists. I worked this out by hand in the 1910s. Tip: Getting to orbit is not about going up. It is about going sideways fast enough.
Materials Science Workshop -- Polymers & Fibers
Hands-on session. Test the strength of different fibers: nylon, polyester, aramid (Kevlar), carbon fiber, silk. Measure tensile strength, stretch, and failure modes. Understand why Kevlar stops a bullet but scissors cut it. Material properties are not obvious -- you must test them.
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.
Microbiology Workshop -- The Invisible World
Hands-on session. Swab surfaces, streak petri dishes, incubate, and examine colonies. You will see what lives on your phone, your doorknob, your skin. The ability to see the invisible world is the foundation of modern medicine. Tip: Always label your plates.
Botanical Press & Specimen Kit
Wooden plant press with blotting paper, corrugated cardboard, and straps. Plus mounting paper, labels, and a hand lens. I collected thousands of specimens for Tuskegee herbarium. Pressing plants is meditation. Label everything: date, location, species, habitat.
Fermentation Science Workshop -- Grapes to Wine to Vinegar
Hands-on. We will ferment grape juice, observe yeast under the microscope, test for alcohol and acetic acid. This is how I started -- wine merchants of Lille asked why their fermentations kept failing. The answer was contaminating microorganisms. Clean your equipment. Always.
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.
Scottish Targe Shield & Dirk Set
Round targe shield (20 inches, studded leather over wood) and 12-inch dirk dagger. The Highlander's backup weapons. The targe catches the blade, the dirk finishes the work. I will teach you the off-hand techniques that made Highland warriors feared in close quarters.
Glass Prism Set (Optical Grade, 3-Piece)
Three optical-grade glass prisms: equilateral, right-angle, and porro. The equilateral prism splits white light into its spectrum. I purchased mine from a fair in Stourbridge in 1666. These are considerably better quality. Handle them by the edges -- fingerprints ruin the optical surfaces.
Crop Rotation & Companion Planting Guide
Hands-on session in the garden. I will show you which plants fix nitrogen, which ones deplete it, and how to rotate so your soil gets richer every year. The peanut-cotton rotation saved Southern agriculture. The same principles work in any garden, any climate.
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.
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.
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