(Christopher) (Wren) returned 3 hits

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Author: Christopher Wren (1632-1723)
Automatic recording device (the weather clock) producing a moving graph of temperature and wind direction (in polar coordinates)
Category: Technology
Author: Christopher Scheiner (1575-1650)
The pantograph was invented for mechanically copying a figure on an enlarged or reduced scale
Category: Technology
Author: Christopher Scheiner (1575-1650)
Visual representations used to chart the changes in sunspots over time. Also, the first known use of the idea of "small multiples'' to show a series of images in a coherent display
Category: Statistics & Graphics