The eye which turns from a white object in the light of the sun and goes into a less fully lighted place will see everything as dark.
Leonardo da Vinci
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"Our Second Experiment", the Professor announced, as Bruno returned to his place, still thoughtfully rubbing his elbows, "is the production of that seldom-seen-but-greatly-to-be-admired phenomenon, Black Light! You have seen White Light, Red Light, Green Light, and so on: but never, till this wonderful day, have any eyes but mine seen Black Light! This box", carefully lifting it upon the table, and covering it with a heap of blankets, "is quite full of it. The way I made it was this - I took a lighted candle into a dark cupboard and shut the door. Of course the cupboard was then full of Yellow Light. Then I took a bottle of Black ink, and poured it over the candle: and, to my delight, every atom of the Yellow Light turned Black! That was indeed the proudest moment of my life! Then I filled a box with it. And now - would anyone like to get under the blankets and see it?"
Charles (Lewis Carroll) Dodgson
"Our Second Experiment", the Professor announced, as Bruno returned to his place, still thoughtfully rubbing his elbows, "is the production of that seldom-seen-but-greatly-to-be-admired phenomenon, Black Light! You have seen White Light, Red Light, Green Light, and so on: but never, till this wonderful day, have any eyes but mine seen Black Light! This box", carefully lifting it upon the table, and covering it with a heap of blankets, "is quite full of it. The way I made it was this - I took a lighted candle into a dark cupboard and shut the door. Of course the cupboard was then full of Yellow Light. Then I took a bottle of Black ink, and poured it over the candle: and, to my delight, every atom of the Yellow Light turned Black! That was indeed the proudest moment of my life! Then I filled a box with it. And now - would anyone like to get under the blankets and see it?"
Lewis Carroll
The impending collision out there somewhere in the great dark between a gas giant and a world very much like our own has some parallels to the eternal collision between religion and common sense. One is bloated and full of gas, and the other is measurable and solid. One engulfs everything around it, and the other simply provides a place to stand. One is a rogue destroyer that has come in out of the night, and the other is a warm well-lighted place vulnerable to the sainted mobs.
Jack McDevitt
A dark object seen against a bright background will appear smaller than it is. A light object will look larger when it is seen against a background darker than itself.
Leonardo da Vinci
It was a place without a single feature of the space-time matrix that he knew. It was a place where nothing yet had happened — an utter emptiness. There was neither light nor dark: there was nothing here but emptiness. There had never been anything in this place, nor was anything ever intended to occupy this place...
Clifford D. Simak
Vinci, Leonardo da
Vine, Stella
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