Bar Breaking Thermal Expansion and Contraction Apparatus Light & Optics_Color Spring-loaded for hands-free grip

Spring-loaded for hands-free grip

this low-current 2mA buzzer on a demonstration base sounds whenever current flows through the closed circuit

well-suited for water-displacement and calorimetry work with an included inquiry-based instruction manual

Base-mounted 2-stroke diesel engine model in aluminum and plastic

the largest value in the demonstrator line for slow RC charging and high-energy capacitor-discharge work

Bar Breaking Thermal Expansion and Contraction Apparatus Light & Optics_Color Spring-loaded for hands-free gripTensioned steel rod in a heavy iron frame breaks a brittle iron cross rod as cooling contraction pulls it taut, visualizing the forces at play during thermal contraction.