Mechanical Stop Watch, 1/10 Second Subcategory_Geology Models Short-form Euro-design 500mL polypropylene measuring

Short-form Euro-design 500mL polypropylene measuring pitcher features molded graduations and a pour spout for autoclavable chemical-resistant workflows

Hand-cranked 12V DC generator in a clear plastic case with a front-mounted lamp and binding posts

the chrome-plated metal frame giving the reading magnifier durability across repeated student handling

Used to demonstrate temperature-dependent resistance

Mechanical Stop Watch, 1/10 Second Subcategory_Geology Models Short-form Euro-design 500mL polypropylene measuringBattery free analog mechanical stopwatch reading to one tenth of a second, providing repeatable timing for physics classroom demonstrations and student laboratory experiments without power.