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Bag of Optical Components
$9.95
Learn about the behavior and properties of light with this mixed bag of optical components. -- Who knows what you will find - it's a grab bag! Each bag contains at least 25 pieces of 5 different optical components GÇô perfect for observing the interaction of light with a variety of materials. The bag is perfect for a budding optical physicist and can be great inspiration for a science fair project. -- Please note, some components may have chips or cracks and we cannot accept returns on component grab bags. -- Components may also have sharp edges, and may not be appropriate for small children without adult supervision
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Bag of Optical Components
from Edmund Scientific's
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Gorilla Glue
$5.95
Known as "The Toughest Glue on Planet Earth," Gorilla Glue is a versatile, interior/exterior all-purpose polyurethane adhesive that's ideal for virtually all of your repairs and building projects. -- Gorilla Glue bonds wood, stone, metal, ceramic, brick, foam board, fiberglass and much more. Plus, it's 100% waterproof, stainable, paintable, easily sanded, non-toxic, acid-free, provides great coverage and has a long open working time.
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Gorilla Glue
from Edmund Scientific's
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Large Surplus Fresnel
$6.95
A surplus fresnel lens measuring 11" square. Fresnel may have small bends or some yellowing, but will otherwise be a functional fresnel lens. -- A typical Fresnel Lens is made up of many small narrow concentric rings. Theoretically speaking, each ring can be considered as an individual small lens that bends the light path. -- In fact, the curvature in each ring is approximated by a flat surface so that each ring behaves like an individual wedge prism: -- The advantage of using a Fresnel lens is its compact size compared with a conventional lens. Common usage includes overhead projectors, pocket-size magnifiers and motion detectors. The word "Fresnel" comes from the person who first used this design to construct lighthouse lenses, Augustin-Jean Fresnel, in 1820. The idea of dividing a lens surface into concentric rings in order to reduce weight and size, however, can be dated back to 1748 by Georges-Louis Leclerc.
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Large Surplus Fresnel
from Edmund Scientific's
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Shock Absorbing Sorbothane
$19.95
Easily Cut to Size -- Ideal For Use In Labs and Assembly Shops -- Sorbothane is a proprietary, visco-elastic polymer. Visco-elastic means that a material exhibits -- properties of both liquids (viscous solutions) and solids (elastic materials). -- Sorbothane is a thermoset, polyether-based, polyurethane material. -- Sorbothane combines shock absorption, good memory, vibration isolation and vibration damping -- characteristics. In addition, Sorbothane is a very effective acoustic damper and absorber. -- While many materials exhibit one of these characteristics, Sorbothane combines all of them in a stable -- material with a long fatigue life. -- **Sorbothane has a low creep rate compared to other polymers (rubber, neoprene, silicone, etc.) -- **Sorbothane has a superior damping coefficient, over a very wide temperature range, compared to any other polymer. -- **Unlike fluid-based shock absorbers or foam products, Sorbothane absorbs shock -- efficiently for millions of cycles. -- **Sorbothane eliminates the need for metal springs to return the system to its equilibrium position after absorbing a shock. -- Absorbs up to 94.7% of impact energy, then reforms to its original shape. Sold in a 12" x 12" x 1/8" sheet. For use by scientists, designers and experimenters
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or to order
Shock Absorbing Sorbothane
from Edmund Scientific's
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