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All screws of a given pitch belonging to a system of the third order are the generators of a certain hyperboloid. There is... a different hyperboloid for each pitch. ...all these hyperboloids are concentric.

— Robert Stawell Ball

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More quotes by Robert Stawell Ball

The moons of Uranus seem to have got a twist.

The intrinsic brightness of the Sun is fully 5,000 times as great as if the whole surface were formed of the molten steel just issuing from the Bessemer converter.

The problem that first demands solution is to discover the disruptive agent which would be potent enough to rip the Cloghvorra Stone from its parent bed, to bear it down the valley for miles, and to cast it on the mountain side.

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Quote text and notes from Wikiquote: Robert Stawell Ball (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.