DIY History | Transcribe | Hevelin Fanzines | Spaceways, v. 3, issue 6, whole no. 22, August 1941

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Spaceways, v. 3, issue 6, whole no. 22, August 1941

14    SPACEWAYS

[LARGE GRAPHIC]
FOURTH COLOR FIELD

PERIMETER
A: Spot on which eye is focused
B: Quadrant arm
C: Carrier

building up of them again by nutrition. One wave of color sensation effects the
element so as to bring about the breaking down process, while the other
wave produces upon the same element the opposite effect, that of building up. For example, yellow is the breaker while
blue is the builder.
     When we mixed the
blue and yellow on the top a moment ago, the process of metabolism occurred so rapidly that all color sensation disappeared, and only an
Impression of brightness remained. Grey, the medium brightness
sensation, is the result of the mixture of complementary colors.
     All very nicely put
to explain the blue and yellow combination, Herr Hering; but then why didn't the pure red and pure green produce grey? What made that yellow come up?
     To solve that one, we'll have to try another experiment. This time we'll
need a regular piece of laboratory apparatus; an instrument called a perimeter. (See digram above.)
     Now, you steady your chin against one side of the part of the apparatus that looks like a boat-hook, while I place the quadrant arm at zero on the dial.
Keep your eye fixed on the spot in the center of the dial directly in front of
you, as I move the carrier from the end of the quadrant arm toward the center. As soon as you see the carrier, give notice; and I'll record its position on the
quadrant arm.
     That's right. Now let's change the position of the quadrant arm to forty-five degrees, then to ninety, and so on until we've gone completely around the dial, each time repeating the experiment. When this is completed we'll expect
those four primary colors, red, green, blue and yellow, on the carrier, and try it all over again.
     Well, at last that's finished. Our next step is to take our record of the
positions of the quadrant arm and the positions of the carrier on the arm whenever the carrier came into your range of vision, and plot from them the field of vision and fields of color for your eye. The result looks like this (See page 13.)
     You see at once that the area enclosed by the line of sight is the largest.
Within this space, and superimposed upon it, are the yellow and blue areas; and within and superimposed upon them,   the red and green areas.   remember what Herr

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14 SPACEWAYS [LARGE GRAPHIC] FOURTH COLOR FIELD PERIMETER A: Spot on which eye is focused B: Quadrant arm C: Carrier building up of them again by nutrition. One wave of color sensation effects the element so as to bring about the breaking down process, while the other wave produces upon the same element the opposite effect, that of building up. For example, yellow is the breaker while blue is the builder. When we mixed the blue and yellow on the top a moment ago, the process of metabolism occurred so rapidly that all color sensation disappeared, and only an Impression of brightness remained. Grey, the medium brightness sensation, is the result of the mixture of complementary colors. All very nicely put to explain the blue and yellow combination, Herr Hering; but then why didn't the pure red and pure green produce grey? What made that yellow come up? To solve that one, we'll have to try another experiment. This time we'll need a regular piece of laboratory apparatus; an instrument called a perimeter. (See digram above.) Now, you steady your chin against one side of the part of the apparatus that looks like a boat-hook, while I place the quadrant arm at zero on the dial. Keep your eye fixed on the spot in the center of the dial directly in front of you, as I move the carrier from the end of the quadrant arm toward the center. As soon as you see the carrier, give notice; and I'll record its position on the quadrant arm. That's right. Now let's change the position of the quadrant arm to forty-five degrees, then to ninety, and so on until we've gone completely around the dial, each time repeating the experiment. When this is completed we'll expect those four primary colors, red, green, blue and yellow, on the carrier, and try it all over again. Well, at last that's finished. Our next step is to take our record of the positions of the quadrant arm and the positions of the carrier on the arm whenever the carrier came into your range of vision, and plot from them the field of vision and fields of color for your eye. The result looks like this (See page 13.) You see at once that the area enclosed by the line of sight is the largest. Within this space, and superimposed upon it, are the yellow and blue areas; and within and superimposed upon them, the red and green areas. remember what Herr