Soda Glass Pneumatic Trough with Concave Base, 12 x 6 inch Subcategory_Scales and Balances Integrated diaphragm beneath an 8-inch

Integrated diaphragm beneath an 8-inch heart model contextualizes cardiac position within the thoracic cavity during combined respiratory and cardiac teaching

deflecting a pivoting cobalt-steel compass needle inside a rectangular conductor frame to show that current generates a magnetic field

and field magnet for direct observation as students trace how current produces rotation in a closed magnetic circuit

Composite rod splitting glass and brass at its midpoint

Soda Glass Pneumatic Trough with Concave Base, 12 x 6 inch Subcategory_Scales and Balances Integrated diaphragm beneath an 8-inchSoda glass pneumatic trough with concave base measures 12 inches diameter by 6 inches tall for gas collection over water.