Psychronometrics

Kaz Maslanka, 1983 — an interactive mathematical poem.

The Flammarion engraving: a traveller pushes his head through the boundary of the sky — The Flammarion engraving, 1888 — a traveller reaches the edge of the sky and pushes his head through it. Colored by Kaz Maslanka, 2026.

There is therefore no time of the philosophers;
there remains only a psychological time different from the time of the physicist.

Albert Einstein · Paris, 6 April 1922

Speed

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You will be asked for two names and two birthdates. Use one of your parents, or your child, and then yourself. The further apart the two ages, the more drastic the result.