US$ 24.99
9-inch sun and eight movable planets
Fifteen-inch enlarged spermatozoon model exposes the head
dermal papillae
restoring rotary control over UV sanitization cycles when the original cracks or breaks off
US-milled iron filings at 40-60 mesh in a 250-gram translucent screw-cap bottle
2-Piece Adjustable Polarizing Filter Set for Optical Bench, 5 x 3.75" Item Type_Cell Model 9-inch sun and eight movableAdjustable polarization across two filters measuring 5 x 3. 75 x 1 inches each, dimensioned to drop into the PH0652 optical bench for hands on study of Malus's law and crossed polaroid extinction.