US$ 118.00
Pair of nylon-fringed metal pompons on insulated stands that fan into wide cones under mutual repulsion when charged
preserving field strength between magnetism and field-line activities
Used to step a class through wave superposition and beat frequencies
and flight adaptations for bird biology teaching
Alnico Horseshoe Magnet, 75 x 12 x 15mm Science Classroom Pair of nylon-fringed metal pomponsMid size 75 x 12 x 15mm Alnico horseshoe with poles clearly indicated and a keeper to bridge the gap during storage, retaining field strength across years of classroom handling.
US$ 118.00
US$ 118.00
US$ 118.00
US$ 78.00
US$ 40.00
US$ 118.00
US$ 78.00
US$ 76.00
US$ 128.00
US$ 58.00
US$ 118.00
US$ 98.00