US$ 14.99
mechanical-advantage
the wider half-disc face extending the available beam-entry zone for refraction and total internal reflection investigations
the heaviest specimen in the series at 11
One-amp AC scale on a 315x115mm laminated panel with sealed shunt
Red LED on a demonstration base with 4mm plug connections
Premium Horizontal Strata Erosion Model, 24 x 16 x 5.5" Gifts_Bar mechanical-advantageHorizontal strata model of the Grand Canyon and Grand Staircase region on a 24 inch wooden base, identifying 27 geologic features from Bryce Canyon to the Tapeats Sandstone.
US$ 14.99
US$ 85.00
US$ 157.50