Leonardo da Vinci Bridge Physics Demonstration Kit, 5-Foot Span Chemical_N-Butyl Alcohol the alternate-SKU twin of PHVSSPRING

the alternate-SKU twin of PHVSSPRING for spring-extension and spring-constant investigations

The refill set meets the requirements for Department of Transportation (DOT) small quantity exemption 173

a swivel attachment

2 twist ties

Medium-size white polyester/cotton drill lab coat features long sleeves and three large pockets for general-purpose lab wear and PPE coverage

Leonardo da Vinci Bridge Physics Demonstration Kit, 5-Foot Span Chemical_N-Butyl Alcohol the alternate-SKU twin of PHVSSPRINGLeonardo da Vinci self supporting bridge kit spanning five feet without tools or glue, demonstrating how friction and gravity balance lateral and gravitational forces in an arched truss.