Laboratory/science equipment

Laser cut in the USA and assembled by Wendy. 1 3/4" wide. 1 1/2" tall.

1 1/2" wide, 2" tall By Fred Cobbs

3/4" tall

Laser cut in the USA and assembled by Wendy. 2" wide.

2" wide, 7/8" deep,  1 3/8" tall "A detector for early radio receivers (early 1900's). Used in electromagnetic wireless telegraphy (Wikipedia)". By Fred Cobbs

3/4" x 1 1/4"

Doesn't turn 3" wide, 3 1/2" tall By Mike Barbour

Laminated paper 2 1/4" x 1 3/4

Plastic 3/4" tall

2" wide 1 1/2" tall Demonstrated that electricity traveled at the speed of light and was a wave.  The waves could be reflected, refracted and polarized, the same as light waves (very simplified) By Fred Cobbs

5 1/4" tall

3 1/2" tall Metal  

Tubes are removable Rack is 7/8" wide For additional test tubes order # mat7a

Pages don't turn Leather cover 1 3/4" wide, 1 1/4" tall

Wood  2" long

78" wide