US$ 199.00
3-inch base with a 2
Higher-capacity 45Ah version of the transparent-cased 2V lead-acid accumulator
Ten-volt range multiplier for galvanometer conversion
used to demonstrate standing waves in air through powder-pile node spacing measurements
Mounted in a plastic case with 4mm safety sockets
Semicircular Acrylic Block, 90 x 25mm Material_Bristle 3-inch base with a 2Thicker 90 by 25mm acrylic semicircular block with polished sides, the deeper body extending the visible refraction path for ray box and Snell's law refraction studies.
US$ 199.00
US$ 175.00
US$ 181.00
US$ 94.60
US$ 118.50
US$ 115.00