US$ 63.99
and crater within internal rock layers
this advanced ripple tank ships with vibration generator
Pairs 74mm of length with a 50mm hypotenuse on a polished acrylic right-angled prism
deflecting a pivoting cobalt-steel compass needle inside a rectangular conductor frame to show that current generates a magnetic field
Glass Lens Set, 2", 6 Optical Types Pack Size_6 and crater within internal rockGround, polished, and packaged as a single optics kit, this six lens glass set covers double convex, double concave, plano convex, plano concave, and concavo convex forms for classroom work.
US$ 63.99
US$ 90.97
US$ 16.98