Fixed Focal Length

Famous quotes containing the words fixed and/or length:

“The nation looked upon him as a deserter, and he shrunk into insignificancy and an earldom.... He was fixed in the house of lords, that hospital of incurables, and his retreat to popularity was cut off; for the confidence of the public, when once great and once lost, is never to be regained.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)

“To find the length of an object, we have to perform certain
physical operations. The concept of length is therefore fixed when the operations by which length is measured are fixed: that is, the concept of length involves as much as and nothing more than the set of operations by which length is determined.”
—Percy W. Bridgman (1882–1961)