Tamāla Kṛṣṇa: Red, but actually it's not reddish; it's white or yellow, whatever.
Prabhupāda: Actually it is white, that's all right, but if you see one fixed thing, a color, practical experience is the color does not change if it is fixed up.
Tamāla Kṛṣṇa: Supposing you are... Supposing there's a white light, and you are situated here, and in front of you is a screen with many colors, and you are moving different ways along this screen. Sometimes you are looking through a green, sometimes... in that way although the light is fixed up, because you are moving behind different colors...
Prabhupāda: So where is that screen?
Jagadīśa: That's called the spectrum.
Prabhupāda: Spectrum. So where is that? That is also finished?
Hṛdayānanda: The atmosphere is.
Dayānanda: The atmosphere is the screen.
Jagadīśa: As the spectrum hits the atmosphere, it bends.
Dayānanda: Just like a prism, Śrīla Prabhupāda.
Prabhupāda: Then the speed of the earth changes. Eh? In the morning you see the sun is very slowly rising, either sun's speed or your speed. But now you see it is rising very quickly.