Dropping Funnel, 500mL - Squibb - With 24/29 Plastic Stopper & Glass Key Stopcock - Borosilicate Glass Lab Supplies_Weights & Masses Optically-worked glass double convex lens

Optically-worked glass double convex lens with a 150mm focal length and 1

and link motion reversing mechanism

Hand-cranked to convert mechanical work into electrostatic energy

U-shaped valleys

breaking its own circuit to a 12V halogen bulb as heat bends the strip

Dropping Funnel, 500mL - Squibb - With 24/29 Plastic Stopper & Glass Key Stopcock - Borosilicate Glass Lab Supplies_Weights & Masses Optically-worked glass double convex lensSQUIBB Squibb style dropping separatory funnel with 500ml capacity TRANSPARENT & DURABLE Made of high quality Borosilicate 3. 3 glass Transparency allows for high visibility FOR SEPARATION Used to transfer liquids Using the stopcock allows fluids, including reagents, to dispense slowly (drop wise) STOPPER & STOPCOCK Fitted with an interchangeable 24 29 plastic stopper and glass key stopcock GREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD