Description

technology

Tangent-galvanometer instrument that derives current absolutely from compass-needle deflection against Earth's horizontal field

spanning cell voltages up through high-tension supply outputs

8mm rod attachment and a centered 50mm aperture together hold a lens square against an optical-bench rail for repeatable refraction

Garage Physics Spiral of Theodorus Block Kit Base Size_8 x 5" technologySixteen block Spiral of Theodorus kit whose triangles grow in heights proportional to 3 through 17, giving students a physical construction of square roots and irrational numbers.

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Garage Physics Spiral of Theodorus Block Kit Base Size_8 x 5" technology

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