Glazed Porcelain Beehive Shelf, 4 inch Physics_Heat & Thermodynamics used as the standard positive

used as the standard positive partner to ebonite in triboelectric investigations

this green LED on a demonstration base with 4mm plug connections lights up when current flows in the correct direction

5 DPDT slide switches

the visible-spectrum sectors blur into an off-white blend when the card is spun rapidly

Thirteen-piece mix of nine steel and four brass precision weights from 1 gram to 1 kilogram

Glazed Porcelain Beehive Shelf, 4 inch Physics_Heat & Thermodynamics used as the standard positiveGlazed porcelain beehive shelf measures 4 inches with glazed interior and exterior for gas collection over water in pneumatic trough procedures.