Description
Wooden wheel-and-axle simple-machine model on a 9
Tangent-galvanometer instrument that derives current absolutely from compass-needle deflection against Earth's horizontal field
a cell holder
Five-pack of 3/4-inch plastic marbles
Garage Physics Spiral of Theodorus Block Kit Base Size_8 x 5" Wooden wheel-and-axle simple-machine model onSixteen 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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