US$ 17.95
Barlow's Wheel apparatus with neodymium magnets and a heavy base
Polished beech wood test tube rack with twelve vertical holes sized for tubes up to 28 mm diameter
Hand-cranked cam turning against both a straight follower and a lever follower
3 geometry stretching focal throw for distant-screen projection of well-formed real images
two Leyden jars
Solid Acrylic Cube, 2" Sides Subcategory_Lab Jacks Barlow's Wheel apparatus with neodymiumSolid 2 inch acrylic cube with polished faces, the cube geometry letting light refract through cubic faces for refraction, beam bending, and total internal reflection demos.
US$ 17.95
US$ 17.95
US$ 17.95
US$ 17.95
US$ 17.95
US$ 17.95