US$ 39.95
and an ignition light that fires on compression
and beakers up to 4
and a selection of wound coils
Demonstrates inertial mass independent of gravity through a spring-steel oscillating platform with two 130 by 50mm trays
and 6V-powered ignition light staging each step
Alnico Bar Magnet with Keepers, Model 0789C Subcategory_Cylinders and an ignition light thatAlnico alloy bar magnet pair shipped in cardboard storage with steel keepers bridging the ends, retaining magnetic strength through repeated handling and storage cycles.