US$ 25.99
the shorter focus delivering more magnification at the cost of field of view
Five-ohm reference coil non-inductively wound from double silk-covered constantan inside a transparent tube
producing oxygen's characteristic emission lines for spectroscope viewing of atomic-emission and quantum-energy levels
5-liter electric kettle on 220V AC
Soda Glass Pneumatic Trough, 30 x 12.5cm Lab Supplies_Tongs the shorter focus delivering moreSoda glass pneumatic trough measures 30 x 12. 5cm for large scale gas collection over water and chemistry demonstrations.
US$ 25.99
US$ 11.00
US$ 14.80
US$ 26.53