Aluminum Plotting Compass, 2" Diameter Base_Octagonal Pink dots mark opposing poles

Pink dots mark opposing poles on this 37 x 9mm Alnico cylinder pair

Greatly magnified transverse dicot stem model on a mounted base exposes vascular bundle arrangement and primary tissue layers for advanced botany teaching

this silk square gives friction rods a strong positive charge for triboelectric and electrostatic demonstrations

letting students vary the moment arm distances on either side and find the balance point for any combination of masses

outfitting classroom stations for sample transfer and dispensing

Aluminum Plotting Compass, 2" Diameter Base_Octagonal Pink dots mark opposing polesGlass faced plotting compass in an aluminum case with a dial marked in principal points, used to map field lines around bar magnets and solenoids.