Description
Hand-cranked cam turning against both a straight follower and a lever follower
5 N/m spring constant
Flexible spine model demonstrates vertebral movement
this set bundles the moving-coil meter
Optically Worked Double Concave Glass Lens, 75mm Diameter, 300mm Focal Length Science at Home_Chemical Science Hand-cranked cam turning against bothLong focal double concave glass lens at 75mm diameter and 300mm focal length, the moderate curvature spreading light gently for divergence and virtual image formation work in refraction demos.
Exchange/Return Notes
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