Bell in Vacuum, Glass, DC Subcategory_Lab Burner Accessories Carbon anode-and-cathode pair pre-fitted in

Carbon anode-and-cathode pair pre-fitted in a rubber bung

letting electrophoresis setups switch between short and long separation runs on a single supply

Half life-size circulatory system board traces arterial and venous pathways from heart to peripheral capillaries with numbered

Pack of 5 rubber pipette bulbs in 5mL capacity provides suction control for precise volumetric transfer and pipetting in laboratory applications

and a 60mm scale

Bell in Vacuum, Glass, DC Subcategory_Lab Burner Accessories Carbon anode-and-cathode pair pre-fitted inBell in vacuum jar with a 4 6V electric bell suspended on rubber cord inside a 22 by 15cm glass chamber, illustrating that sound cannot travel without air.