US$ 110.00
5 inch specific gravity cylinder with a top hook for spring-scale massing
Snell's law
a 12V LED source on a US plug
Acrylic double-concave lens at 86mm length and 20cm diverging focal length
Rectangular Refraction Glass Block, 75 x 50 x 18mm Lab Supplies_Classroom 5 inch specific gravity cylinderPairs a 75 by 50mm face with a thicker 18mm body on a rectangular glass refraction block, the optically worked beveled edges widening the visible lateral shift in refraction angle demos.
US$ 110.00
US$ 150.00
US$ 115.50
US$ 15.00
US$ 110.50
US$ 19.95
US$ 15.00
US$ 33.50