Description

this resistance box at plus-or-minus 1% on each step replaces dozens of fixed resistors at the bench

and intervertebral disc anatomy for musculoskeletal system teaching

illustrating the Lorentz force as current crossing the magnetic field sets a low-friction wheel in motion

a range box

Magnetic Inclination Needle for Earth Field Demonstration Capacity_50mL this resistance box at plus-or-minusVertically pivoting magnetic needle that visualizes the dip angle of Earth's field, showing how inclination shifts from horizontal at the equator to vertical at the poles.

Exchange/Return Notes

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Magnetic Inclination Needle for Earth Field Demonstration Capacity_50mL this resistance box at plus-or-minus

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