Do you know if anyone used experiments with heating in wind tunnels?
David On 7/12/07, Jed Rothwell <[EMAIL PROTECTED]> wrote:
See: http://www.hq.nasa.gov/office/pao/History/SP-440/contents.htm This is a good summary. They had better wind tunnels in Europe prior to 1908 than I realized. Albert Zahm's tunnel at Catholic University is discussed. I have read that it was much more precise and more expensive than the Wrights'. I did not realize how much better! See: http://www.hq.nasa.gov/office/pao/History/SP-440/ch2-3.htm "Zahm's ingenious pressure gages had sensitivities of a millionth of an atmosphere; that is, the pressure exerted by only 1/3 inch of air. With this impressive research facility, Zahm did pioneering work on the drag of dirigible hulls. . . ." Zahm later became a bitter, lifelong enemy of the Wrights. - Jed
