Object Screen for Optics Subcategory_Burettes Tirrill burner on a stable

Tirrill burner on a stable octagonal base adds air

Life-size muscular skeleton model features painted muscle origins

Six 60-inch wires - steel and brass at 22

this 6V-maximum electromagnet supports paper-clip-load measurements that reveal the linear relationship between input voltage and lifting force

Nine-model set traces embryonic and fetal development across the full gestational period

Object Screen for Optics Subcategory_Burettes Tirrill burner on a stableCut out at one edge slips this 125 x 70 x 200mm matte white metal screen over a meter rule for vertical or horizontal positioning during optical bench image formation work.