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66 results for “coaching”
Viking Axe & Round Shield Training
Bearded axe and lime-wood round shield. The axe hooks shields aside, the rim of your own shield is a weapon. Viking combat is aggressive, mobile, and brutal. Tip: The axe does not need a sharp edge to break bones. Weight and leverage do the work. Fight with the shield, kill with the axe.
Desert Crossing & Forced March Workshop
I crossed the Syrian Desert in 6 days -- 500 miles through waterless waste with an army. Water caching, camel logistics, march discipline, heat management. The Byzantines thought the desert protected their flank. They were wrong. Tip: The impossible route is undefended because the enemy thinks no one can take it.
Andes Mountain Crossing Expedition Training
High-altitude mountain warfare. Acclimatization, cold weather movement, river fording, maintaining combat effectiveness at altitude. I crossed a 13,000-foot pass in the wet season. A third of my army died. The rest won independence for a continent. Tip: The mountain does not care about your cause. Respect it or it kills you.
Lakota War Lance & Coup Stick
10-foot war lance with iron point and eagle feather decorations, plus a coup stick. Counting coup -- touching an enemy in battle without killing him -- was the highest act of bravery. Killing was easy. Touching was courage. I counted coup many times before I started fighting for survival.
Tuning Fork Set (Scientific Grade, 8-Piece)
Eight precision tuning forks covering one full octave. Essential for acoustics experiments, hearing tests, and understanding resonance. Strike one near a piano and watch the matching string vibrate in sympathy. That's how the telephone works -- sympathetic vibration converted to electrical signal.
Kite Building Workshop -- Control Surfaces
Build a biplane kite with working control surfaces. We tested our wing-warping concept on kites before we ever risked our necks in a glider. You'll learn about roll, pitch, and yaw -- the three axes that every pilot controls. Also great fun on a windy beach.
Antenna Design & Construction Workshop
Build working antennas: dipole, ground plane, Yagi-Uda. Wavelength, impedance matching, gain, directivity. The antenna is the most important part of any radio system. A perfect transmitter with a bad antenna is useless.
Engine Rebuilding Workshop -- Gasoline Fundamentals
Disassemble and reassemble a small gasoline engine. Pistons, valves, crankshaft, carburetor, ignition. You will understand the four-stroke cycle by touching every part. I built my first engine on the kitchen table. Clara held the fuel line.
Tide Pool Ecology Kit (Marine Biology Starter)
Clear observation containers, pH strips, salinity meter, waterproof ID cards for intertidal species, and a guide to tide pool ecology. The tide pool is a complete world in miniature. Everything connects. Disturb one species and watch the cascade. This is what Silent Spring was about -- scaled up to continents.
Color Filter Set (Optical, RGB + Complementary)
Precision optical filters: red, green, blue, cyan, magenta, yellow. Mount them on a light source and explore additive and subtractive color mixing. Combine red and green light -- you get yellow. This surprises everyone. Color is not in the objects. Color is in the light and in your eyes.
Braille Slate & Stylus Set (Professional)
Professional-grade Braille writing slate with interline spacing and a steel-tipped stylus. Write by punching dots right-to-left (they read left-to-right when flipped). Includes 50 sheets of Braille paper.
Oscilloscope (Analog, Teaching Model)
Analog oscilloscope -- a cathode ray tube that draws electrical signals as visible waveforms. See your voice as a wave, see music as patterns. The oscilloscope is the engineer's eye.
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