Found 340 Resources containing: Design diagram
Twenty years before the start of World War I, a new "light" that could pass through a human body revealing its underlying structures caused a public sensation. Within a few years, the x-ray had become a standard worldwide diagnostic tool in medicine. The early equipment used to produce the x-rays was unstable and difficult to use, but scientists Julius Lilienfeld of Germany and William Coolidge of America found solutions independent of each other at essentially the same time. Their similar, sometimes competing, work during World War I resulted in the x-ray technology we use today.
On the verso are various handwritten mathematical calculations.
This item should be viewed with Digital ID 207.
Sketchbook Page, Folio 64: Study after Bolognese Architecture and Monuments, Including Arch of San Domenico; Verso: Geometric Studies
Verso: Across both havles of paper are six equally sized rectangles bearing diagram and text on how to locate on wall, respectively, a circle, a triangle, a square, a rectangle, a trapezoid, and a parallelogram.