| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 6F10.00 | Synthesis and Analysis of Color | | |
| 6F10.10 | color box | PIRA 500 | |
| 6F10.10 | color box | 6F10.10 | A commercial Singerman box projects blue, red, and green light onto a screen with individually variable intensity. |
| 6F10.10 | color box | Oj-3 | Overlap red, green, and blue light of adjustable intensity on a translucent screen. |
| 6F10.10 | color box | O-6a | The Welch color box shows the addition of the primary colors. |
| 6F10.10 | additive color mixing | Disc 23-26 | Mix red, green, and blue in a color box. |
| 6F10.11 | color addition | L-88 | Red, green, and
blue lamps shine from the corners of a white triangle. A rod or rods are
placed on the screen to show the colors of shadows. |
| 6F10.12 | cenco color apparatus | O-6b | The primary colors can be projected onto a screen. |
| 6F10.13 | color synthesizer | 35-7.6 | A color synthesizer allows demonstration of the significance of dominate wavelength, purity, luminosity, etc. |
| 6F10.15 | color addition | L-89 | Wratten filters
Nos. 19, 47, and 61 are used to make a slide with 1/3 of a circle of each
color. A projection arrangement shows the combination of colors and division
of light between the separate colors. |
| 6F10.16 | color projector | 35-7.1 | Adapting a lantern slide projector for mixing primary colors. |
| 6F10.17 | projecting colors | 35-7.4 | Many color demonstrations are performed with a slide projector and slides reflected off swivel mirrors. |
| 6F10.18 | lantern slide colors | 35-7.2 | A diffraction
grating is held in front of a lantern projector with seven slits, one side
with primary additive colors, the other with subtractive, and the center
white. |
| 6F10.20 | color filters | PIRA 500 | |
| 6F10.20 | color filters | 6F10.20 | Cyan, magenta,
and yellow filters are available as loose squares or fixed in a plexiglass
holder for use on the overhead projector. |
| 6F10.22 | dichromatic primary pairs | AJP 37(6),662 | Discussion of the standard light addition, subtraction, as they relate to two color mixing. |
| 6F10.23 | artist's colors | AJP 47(2),142 | On why artists use red, yellow, and blue instead of red, green, and blue. |
| 6F10.23 | artist's colors - letter | AJP 47(7),573 | Hey
guys, artists use pigments, not light, and anyway the subtractive primary
colors are cyan, magenta, and yellow. Information of 4-color printing and
real artist's pigments too. |
| 6F10.25 | spinning color disc | PIRA 1000 | |
| 6F10.25 | synthesis of colors | Oj-2 | A disc with colored sectors appears white when rotated. |
| 6F10.25 | spinning color discs | L-93 | Disks with colored sectors are spun until the colors blend together. |
| 6F10.25 | Newton's color disc | Disc 23-25 | A spinning disc of colored sectors appears white. |
| 6F10.26 | weird slit with Hg light | 35-7.7 | A
slit and "inverted slit" used with Hg and a prism produce the normal line
spectra and "inverted spectrum" of complementary colors. |
| 6F10.30 | recombining the spectrum | PIRA 1000 | |
| 6F10.30 | recombining the spectrum | Oj-4 | Recombine the spectrum after passing through a prism to get white light or remove a color and get the complement. |
| 6F10.30 | recombining colors | 35-7.5 | Recombining dispersed light after reflecting out various colors, etc. |
| 6F10.30 | recombining the spectrum | L-92 | Obtain a spectrum with a prism, reflect out a color with a small thin mirror, and recombine the light with a lens. |
| 6F10.33 | purity of the spectrum | PIRA 1000 | |
| 6F10.33 | purity of the spectrum | Oj-1 | A second prism at right angles bends each color without dispersion. |
| 6F10.35 | splitting and recombining | 35-1.6 | A half spectrum filter splits out light from a beam which is then recombined at a spot. |
| 6F10.36 | dispersion and recombination | 35-5.5 | Several variations of recombining dispersed light from a prism. |
| 6F10.45 | complementary shadow | PIRA 1000 | |
| 6F10.45 | red and green | 6F10.45 | |
| 6F10.45 | complementary shadow | 35-7.8 | Shadows of red and white lights illuminating the same object from different angles appear to produce green light. |
| 6F10.50 | filtered spectrum | PIRA 1000 | |
| 6F10.50 | filtered spectrum | L-90 | Part of a
beam of white light is projected through a prism. When a filter is inserted
in the beam, the spectrum and transmitted light are compared. |
| 6F10.51 | liquid cell absorption | 35-4.3 | An absorbing solution is placed in a liquid cell placed in a beam of light before dispersion. |
| 6F10.52 | plotting absorption | O-9d | A motor
drive is connected to a grating and the output of a lead sulfide detector
is plotted on a strip chart recorder as the spectrum is scanned with various
filters and intensities. Reference: AJP 35(6),542-3. |
| 6F10.52 | spectra and liquid absorption | O-9a | Absorption cells filled with liquids are used with a 35 mm projector and the B & L spectra projection kit. |
| 6F10.52 | filtergraph | O-6c | A slide with four filters and the corresponding spectrographic diagrams. |
| 6F10.54 | photocell measurement of absorption | L-115 | Use suitable sources, cells, and filters to measure absorption of substances with a photocell. |
| 6F10.55 | band absorption spectra | PIRA 1000 | |
| 6F10.55 | band absorption spectrum | L-109 | A
flask of nitrous oxide is placed in the beam of white light before dispersion
by a prism spectroscope. Didymium glass and dilute blood are also suggested. |
| 6F10.56 | absorption spectrum of chlorophyll | L-110 | Show the absorption spectrum of chlorophyll obtained by macerating leaves in methyl alcohol. Red and Green transmit. |
| 6F10.57 | water absorption bands | 39-1.6 | A monochrometer (38-5.11) is used to demonstrate water absorption bands. |
| 6F10.61 | metal films and dyes | L-96 | A thin film of gold transmits green but looks reddish-yellow by reflection. Dyes also transmit and reflect different colors. |
| 6F10.65 | dichromatism | L-95 | Green cellophane
transmits more red light than green. Stack lots of sheets and the color of
transmitted light changes from green to red. |
| 6F10.70 | three conditions for color | L-87 | The
three conditions are: Color must be in the source, the object must reflect
or transmit the color, the detector must be sensitive to the color. Shine
different colored light at different colored objects. |
| 6F10.71 | color due to absorption | L-91 | Light
from a projection lantern reflected off red, green, and blue glass to the
ceiling is the same but the transmitted light is colored by absorption. |
| 6F10.75 | colors in spectral light | PIRA 1000 | |
| 6F10.75 | colored yarn | 35-7.3 | Skeins of colored yarn are illuminated with different colored light. |
| 6F10.75 | colors in spectral light | Disc 23-23 | A rose is viewed in white, red, green, and blue light. |
| 6F10.80 | complementary color transitions | AJP 39(2),201 | Lecture
room experiments are proposed which demonstrate complementary color transitions
due to complementary boundary conditions at the aperture. |