Flexible Electrical Wire Graduations_Ungraduated this bare Eureka constantan wire

this bare Eureka constantan wire takes advantage of the alloy's low temperature coefficient

expanding and closing to suit different optical-component sizes on a single bench-mounted holder

and upper airway structures in a single anatomical plane

providing dense uniform spheres for ramp-and-collision experiments where a heavier projectile is needed than the plastic marbles can provide

sized to keep electromagnetism demonstrations running when the original coils wear out

Flexible Electrical Wire Graduations_Ungraduated this bare Eureka constantan wireMultistrand PVC insulated copper wire rated to 5 amps, sized for routing around components and through apparatus where solid core wire would be too stiff to follow the bend.