Bar Breaking Thermal Expansion and Contraction Apparatus Light & Optics_Color place value

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Ten-inch high-speed low-friction pulley on a 12mm aluminum rod

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

Transverse and longitudinal sections of this 3D dicot stem expose epidermis

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

Bar Breaking Thermal Expansion and Contraction Apparatus Light & Optics_Color place valueTensioned 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.