Second Law Of Motion Apparatus, 25 Cm Long Unit Has A 10 mm Rod. It May Be Horizontally Clamped To A Support Stand Or Table Clamp. Complete With Two Steel Balls, Substantial Metal Casting And The Entire Mechanism Is Visible, The Spring Gun Offers Two Tensions
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational uses, Size: 200mm focal length, 2in diameter and 5.5mm thick