Classroom Optics and Light Studies
Educational Innovations POLARIZING FILTER 6IN X 6IN
When two polarizing filters are placed atop one another, they can be transparent or opaque to light. By rotating one of the filters, the transmitted light passing through the filters may be turned 'on' or 'off'.
Enterprise Technology Solutions Quartet Laser Pointer, Cushion Grip, 500 Yard Range, BK
Pen-style laser pointer is enhanced with a nonslip, rubberized cushion grip for more comfortable use. Class 3a laser pointer projects a highly visible red dot over 300 yards. Bright red dot can be used on any medium, including high lumen overheads, videos and multimedia projections. Battery-operated design runs on two AAA batteries (included).
HARVARD BIOSCIENCE INC SA-20MW-AL-N
Total order minimum requirement of $500 per supplier requirements. A $25.00 order fee will be applied if entire order is less than the $500 minimum requirement.
Enterprise Technology Solutions Quartet Laser Pointer, Class 3A, 500 Yards, 5-7/8", Red Dot/ BK
From its sleek black, metallic design to its high-visibility, bright red beam, this laser pen is perfect for large rooms. The laser red dot is visible in all room conditions and up to 500 yards. Compact design fits right in your pocket. Class 3A, pen-style laser pointer is made with high-impact black plastic and includes two AAA batteries.
Enterprise Technology Solutions See All 160 Convex Security M
160 degree Convex Security Mirror Round Rectangular 18 w x 12 h