9 lantern slides of diffraction patterns, atomic structure, spectra.
Date: 1925-1940
Inventory Number: 1998-1-0896
Classification: Lantern Slides
Dimensions:3 x 11.4 x 8.9 cm (1 3/16 x 4 1/2 x 3 1/2 in.)
Accessories: cardboard box
DescriptionNine glass lantern slides bound with black tape covering various subjects but focused on properties of light, diffraction, spectra, Lyman lines, etc. The slides are numbered on paper labels, and they have subject labels.
1. 671 Subject: Diffraction / Straight edge
2. 673 Subject: Diffraction / Needle and point
3. 679 Subject: Young's / Interference fringes / 2 slits
4. 804 Subject: Barium / Example of fundamental triplet
5. 805 Subject: Ca 4227 / IS - 2P. showing reversals / 3g
6. 777 Subject: Ca / Lyman / Schumann Region
on a separate label: Ca 4
7. 779 Subject: Al1 / Lyman
on a separate label: Al1
8. 800 Subject: [cut off] / Calcium Vacuum Arc
9. 950 Subject: G. R. Harrison / Slide on atomic structure
This last slide has images taken from a textbook. Figure 1 shows a diagram of "An Atom of Sodium" and Figure 2, "A Steam Radiator." The latter shows a dog chasing a cat on a treadmill generating steam. The caption points out that the diagram of the atom looks as much like an atom as the diagram of the radiator is like a real steam radiator. The artist, who had never seen a steam radiator, drew the radiator by only hearing it through a brick wall.