US$ 14.00
Two-inch vinyl-coated fingers on this three-finger extension clamp mount to a swivel boss head fitting rods up to 18mm
5 Pa Bourdon gauge on a powder-coated metal base for whole-class visibility
Wider-apex 40° x 40° x 100° glass prism
and a release valve
Pair of Alnico bar magnets 10mm wide
Earthquake Teaching Model Length_50mm Two-inch vinyl-coated fingers on thisDepicts fault origins, seismic wave propagation, and surface effects on a hand painted wall mountable backboard, each wave type individually labeled for geophysics reference.
US$ 14.00
US$ 14.00
US$ 120.00
US$ 29.00
US$ 20.00