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38mm D x 10cm Focal Length - Double Concave

38mm D x 10cm Focal Length - Double Concave

Superior quality glass lenses are useful for teaching a variety of optical principles. Double concav..

Product Code: 7-909-8

$1.15

38mm D x 20cm Focal Length - Double Concave

38mm D x 20cm Focal Length - Double Concave

Superior quality glass lenses are useful for teaching a variety of optical principles. Double concav..

Product Code: 7-909-10

$0.86

50mm D x 10cm Focal Length - Double Concave

50mm D x 10cm Focal Length - Double Concave

Superior quality glass lenses are useful for teaching a variety of optical principles. Double concav..

Product Code: 7-909-21

$1.29

50mm D x 20cm Focal Length - Double Concave

50mm D x 20cm Focal Length - Double Concave

Superior quality glass lenses are useful for teaching a variety of optical principles. Double concav..

Product Code: 7-909-11

$1.39

75mm D x 20cm Focal Length - Double Concave

75mm D x 20cm Focal Length - Double Concave

Superior quality glass lenses are useful for teaching a variety of optical principles. Double concav..

Product Code: 7-909-12

$2.19

Cave Painter of Lascaux  (Angeletti)

Cave Painter of Lascaux (Angeletti)

Anna is on a school trip to the Lascaux cave in the south of France -- a mysterious place with prehi..

Product Code: CP1346

$19.99

Cave Painter of Lascaux DVD

Cave Painter of Lascaux DVD

Anna is a young girl on a school trip in France who goes to the cave of Lascaux, gets separated from..

Product Code: CP1819

$24.99

Glass Concave/Convex Mirror, Silver Backed, 7.5cm D x 25cm Focal Length

Glass Concave/Convex Mirror, Silver Backed, 7.5cm D x 25cm Focal Length

The economical glass mirrors with silver backing and ground edges are great for all types of optical..

Product Code: 7-1301-N

$4.99

Glass Convex/Concave Mirror, Black Backed, 53mm D x 15cm Focal Length

Glass Convex/Concave Mirror, Black Backed, 53mm D x 15cm Focal Length

The economical glass mirrors with silver backing and ground edges are great for all types of optical..

Product Code: 7-1301-W

$2.29

Glass Spherical Mirror - 7.5cm D x 7cm Focal Length

Glass Spherical Mirror - 7.5cm D x 7cm Focal Length

The economical glass mirrors with silver backing and ground edges are great for all types of optical..

Product Code: 7-1301-J

$2.49

Heating Water with a Concave Mirror

Heating Water with a Concave Mirror

Another of our “green” experiments that demonstrates how we can use the energy from the sun to heat ..

Product Code: 6-4333-04

$76.99

Large Mirror - Parabolic, Concave, 40.5cm Diameter x 68cm Focal Length

Large Mirror - Parabolic, Concave, 40.5cm Diameter x 68cm Focal Length

The large size allows for classroom demonstrations! Available in both parabolic and spherical. Optic..

Product Code: 7-1301-4

$54.99

Lascaux Cave Art  Prints w/Guide

Lascaux Cave Art Prints w/Guide

These photographs were taken of original paintings in the Lascaux cave created more than 17,000 year..

Product Code: CP6063

$29.99

Lascaux Cave Art CD

Lascaux Cave Art CD

These photographs were taken of original paintings in the Lascaux cave created more than 17,000 year..

Product Code: CP6063CD

$19.99

Lascaux Cave Art Download

Lascaux Cave Art Download

These photographs were taken of original paintings in the Lascaux cave created more than 17,000 year..

Product Code: CP6063DL

$9.99

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