Physical laboratory experiments : mechanics, optics and heat (1917)
Goodwin, H. M. (Harry Manley), 1870- · Boston : G. H. Ellis Co., Printers · leaf 138
h by no means the least difficult, which are metwith in physical work. Standards of Light.—Of all standards of physical meas-urement the light standard is one of the least satisfactorybecause of the difficulty of accurately reproducing it. Atthe present time no single standard has been agreed… … as the standard for all scientific work. This consists of awick lamp of the form shown in vertical section in Figure 1 and in perspective in Figure2, and burning chemicallypure amyl-acetate, a liquidwhich can readily be ob-tained of great purity. Thewick tube, A, is 8 mm. insideand 8.3 outside…
Physics · Mechanics
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
