Fun with Diffraction Gratings!! Preprinted Rainbow PeepholesTM. Always in stock and ready to ship. The ideal teacher incentive. Great in the classroom when a quality diffraction grating is needed for the study of Light and Color. Just look through your Rainbow Peephole at any light source...the rainbow starbursts will amaze you! RAINBOW PEEPHOLES: 13,500 Line/Inch Diffraction Grating - 1 11/16" Diameter, 1/2" Window - Heavy Cardboard.
Our New Plastic Eclipse Glasses Wrap Around Goggles have the same high quality and protective optics you have come to know and enjoy in our paper Eclipse Shades®. The extra wide temples and shield above the nose bridge eliminate most ambient light leaks. This will put you in a truely dark viewing environment. We know you will appreciate the quality. All come with a money back guarantee if there is ever an issue or problem with one of our products. These new Eclipse Glasses are pristine, and you will love them...as a matter of fact, please let us know. We need your feedback. It even gets better, we will include two pair of our paper glasses with each order...as we always say "Make a Friend!" all of our solar viewing products are CE and ISO certified. Includes a glasses lanyard and a micro fiber pouch for storing and cleaning your Eclipse Shades®. Eclipse 2017 Map Image Compliments of Michel Zeiler, Great American Eclipse
The Ajax Scientific Polished Glass Double-Convex (Bi-Convex) Lens has two outwardly curved surfaces that converge light rays to a point for demonstrating optical principles and effects for students. The lens has a focal length of 150mm and is 50mm in diameter. It is made of polished glass with ground edges. Lenses are used in scientific experiments and classroom demonstrations. Science education products incorporate applied math and science principles into classroom and homeschool-based projects. Teachers in pre-K, elementary, and secondary classrooms use science education kits and products alongside science, technology, engineering, and math (STEM) curriculum to demonstrate STEM concepts and real-world applications through hands-on activities. Science education projects include a broad range of activities, such as practical experiments in engineering, aeronautics, robotics, energy, chemistry, physics, biology, and geology. Ajax Scientific distributes scientific equipment, supplies, and instruments for industrial, research, and educational applications. The company, founded in 1984, is headquartered in Toronto, ON, Canada.
This magnifier offers an extra large field of view, hands free use, and folds down to a compact size for storage. Lens is 4" diameter, magnification is 6x. Ideal for desktop use dissecting small specimens like owl pellets.