US$ 146.50
and aluminum at a shared 0
and classroom projects
Used for controlled drop-wise addition of reagents during synthesis
the workhorse decade for introductory Wheatstone-bridge and Ohm's-law work
with 4mm socket termination for direct connection to a standard laboratory low-voltage supply
Optically Worked Double Convex Glass Lens, 75mm Diameter, 1000mm Focal Length Material_Brass and aluminum at a sharedDesigned for parallel beam refraction work, this 75mm double convex glass lens at 1000mm focal length runs at f 13, near collimated for astronomical analogue and long throw projection setups.
US$ 146.50
US$ 167.00
US$ 289.50
US$ 29.99
US$ 24.99