US$ 40.00
the wider half-disc face extending the available beam-entry zone for refraction and total internal reflection investigations
demonstrating how sound transmission weakens as the air is evacuated
Color-coded life-size brain model distinguishes cortical lobes
Insulated 2mm-plug lead in the small-scale lead family
Premium Horizontal Strata Erosion Model, 24 x 16 x 5.5" Gifts_Bar the wider half-disc face extendingHorizontal 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$ 40.00
US$ 137.50
US$ 20.00