Description
this metal helix lets stairwell-scale wave-propagation experiments amplify the visibility of standing waves
and inner ear anatomy for upper-level anatomy teaching
this Van de Graaff generator delivers spark-producing high-voltage demonstrations in the physics classroom
and copper supports density
Optical Glass Lens for Top Spinning Base, 3" Capacity_500mL this metal helix lets stairwell-scaleDouble concave glass lens at 3 inch diameter and 200mm diverging focal length, ground to polished beveled edges and usable as a top spinning base in secondary mechanics demonstrations.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
