Steel Ball Bearings, 3mm, 50-Pack Heat & Thermodynamics_Temperature & Heat anchoring side-by-side magnet-strength comparisons for

anchoring side-by-side magnet-strength comparisons for the classroom

and raised graduations with full autoclave and dishwasher tolerance

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

showing the deflection of a current-carrying wire through a fixed magnetic field via 4mm safety sockets

Steel Ball Bearings, 3mm, 50-Pack Heat & Thermodynamics_Temperature & Heat anchoring side-by-side magnet-strength comparisons forFifty pack of 3mm steel ball bearings, the smallest size in the series for pendulum and small scale collision experiments where a compact projectile mass is needed.