Universal Battery Charger Heat & Thermodynamics_Temperature & Heat Hand-cranked pulley steps up to

Hand-cranked pulley steps up to a smaller dynamo pulley through a rubber belt

Zinc alloy natural gas Bunsen burner with flame stabilizer ships with a 2-foot neoprene gas hose for quick bench hookup in chemistry classrooms

this large-capacity polypropylene measuring jug carries raised graduations and tolerates autoclave

and heart-tube formation for embryology and developmental biology teaching

Three adjustable strings

Universal Battery Charger Heat & Thermodynamics_Temperature & Heat Hand-cranked pulley steps up toDesigned to recharge the cells used in laboratory apparatus, this universal charger keeps portable instruments running between sessions without rotating in fresh disposable batteries.