IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. George Willis Ritchey built this ...
A few months after the end of World War II, on Dec. 3, 1945, workers at the Caltech Optical Shop resumed grinding work on the mirror of a 200-inch Palomar Observatory telescope. Work had been halted ...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
Why build a telescope? YOLO, as the kids say. Having decided that, one must decide what type of far-seer one will construct. For his 10″ reflector, [Carl Anderson] once again said “Yolo”— this time ...
Why build a telescope? YOLO, as the kids say. Having decided that, one must decide what type of far-seer one will construct. For his 10″ reflector, [Carl Anderson] once again said “Yolo”— this time ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results