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By Konrad Zuse

Calculating area is the name of MIT's English translation of Konrad Zuse's 1969 publication Rechnender Raum (literally: "space that's computing"), the 1st booklet on electronic physics.[1]

Zuse proposed that the universe is being computed by means of a few kind of mobile automaton or different discrete computing machinery,[1] tough the long-held view that a few actual legislation are non-stop by way of nature. He considering mobile automata as a potential substrate of the computation, and mentioned (among different issues) that the classical notions of entropy and its progress are not making experience in deterministically computed universes.

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Let us consider how the Egyptians could have oriented the pyramids. They must have started by finding north or south-east and west are simply the directions midway between them and cannot be found directly. To find north or south accurately we must use the stars; the sun is too big and too bright to yield an accurate result. I describe one way in which north can be found on page 26. Another way would be to bisect the angle between the directions in which a star rises and sets, taking care that the horizon heights are the same at the two points, perhaps by building an accurately leveled wall some distance north of the observer and using this as a horizon.

What is the mathematical probability that a collection of point-to-point alignments could, by sheer chance, come so close to so many astronomically interesting directions? First, we must decide how accurate we can reasonably expect an alignment to be. Anyone who has moved a 100-kilogram stone (perhaps building an oriental garden) will know how difficult it is to place it exactly where it is wanted; and the stones of Stonehenge me much larger than that. Gerald Hawkins suggested 2° accuracy [37].

Thus from the two elevations of the sun we find both the obliquity and the latitude. This method has the practical difficulty that the solstice will usually occur not at noon but between noons, so the sun will not have reached its extreme declination when the measurement is made. We will see on page 98 how the Chinese dealt with this difficulty. 1. If we stand in the middle of them at dawn on the day of the summer solstice, we can watch the sun rise over a distant stone pillar known as the heel-stone.

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