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http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/ec71053860de284406b04c5e7d9a566a.JPG image/jpeg thumbnail

Homemade Geiger counter

Grinnell's first Geiger counter which unfortunately is broken.
http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/7cf1743c7249e2639cf81c23280a32fb.JPG image/jpeg thumbnail

Discharge Tube and Wooden Base

Similar to a Crooke's discharge tube.
http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/b795e64a50a28e33beb09daefaf5a5a8.JPG image/jpeg thumbnail

60-60-60 Prism with faceted ends

Has been at Grinell College since at least 1928.
http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/88206310027341269203ffce8245fb5b.jpg image/jpeg thumbnail

Heliograph

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/9fb94207bf4973b43c7add6262b7e24c.jpg image/jpeg thumbnail

Tailpiece of Alvan Clark Telescope

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/018d25d681a8d71d8f6b0e3552ff82a3.jpg image/jpeg thumbnail

Objective of Alvan Clark Telescope

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/658bc23fded023de5055258f97a30649.JPG image/jpeg thumbnail

Double Prism Demonstrator on Stand

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/2fd07d156421023efcc402df3e4888b1.jpg image/jpeg thumbnail

Vacuum Tube

Created by Grinnell Students in 1922.
http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/6c80d215384f81e501b68967b0b32a16.jpg image/jpeg thumbnail

Small Magnetic Dip Needle

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/688c6b3c480c7ba2b17f706b578a3d15.JPG image/jpeg thumbnail

Telegraph Key on Wooden Base

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/ef332f665d5c2b64482876c9b0c7fa06.jpg image/jpeg thumbnail

Compass Needle on Stand

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/c067abf7be9ecb1744eaabac9cde6422.jpg image/jpeg thumbnail

Large Boxed Magnets

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/88a12e1acf8ce5b8448ddc5dcaeadf09.jpg image/jpeg thumbnail

Small Boxed Magnets

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/92487166ae577806506086326fa8cfab.JPG image/jpeg thumbnail

Hollow Coil with Orange Covering

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/aca18b24768977b92d8378e7bd3ed4fb.JPG image/jpeg thumbnail

Electric Motor with Wound Armature

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/371d1dcdf477435507c7b7140f91872b.jpg image/jpeg thumbnail

Crooke’s Tube and Base

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/b032b13637e0a350b983d609233a2f0b.jpg image/jpeg thumbnail

Telegraph Recorder

This telegraph recorder used tape to record dots and dashes. It is missing its stylus.
http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/c0c588e7512c6aabc86db43337056dea.JPG image/jpeg thumbnail

Electrostatic Planetary System and Electric Whirl

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/753dab11ef7a6ed9da65d0d2544e22f2.JPG image/jpeg thumbnail

Leyden Jar

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/2137737322a589f665d5d15e122e57ee.JPG image/jpeg thumbnail

Toepler-Holz Electrostatic Machine

Grant thought this came from Davenport.
http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/702e40d30d4cf507c67137723ea2048c.JPG image/jpeg thumbnail

Six Fancy Discharge Tubes

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/4d1b8e3904d0e60e243260d9a499fd0c.JPG image/jpeg thumbnail

Leyden Jar

This jar can be disassembled and the inner liner can be removed.
http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/678ba7c6d6eb01676610d209e435c7eb.jpg image/jpeg thumbnail

Angle of Refraction Apparatus

http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/7f076699c0c6d6f15216fa946a3fbf96.jpg image/jpeg thumbnail

Two Brass Reflecting Dishes