They then attached horizontal planes to the balance to test how they behaved in the wind. Above is a model of the original balance from two points of view. One balance measured lift while the other measured the ratio of lift to drag. Inside, on the floor of the box, they attached two balances which were made from broken hacksaw blades, bicycle spokes,and scrap metal. The air from the fan blew at twenty-five to thirty-five miles per hour and passed through a metal grid which straightened it. The fan had two blades and was powered by a belt and pulley system attached to the ceiling. They put a pane of glass in the topside of the box so that they could see inside. It was six feet long, sixteen inches wide, and 16 inches deep. The tunnel was a long rectangular wooden box with one end open for a fan to make the wind. Two testing-machines were built, which we believed would avoid the errors to which the measurements of others had been subject." But we soon found the work so fascinating that we were drawn into it deeper and deeper. We reluctantly entered upon the scientific side of it. "We had taken up aeronautics merely as a sport. This model was created using the replica's exact dimensions and specifications. The replica was built carefully to match the original dimensions and materials. The original wind tunnel no longer exists, but a replica was built in the 1930s for display in The Franklin Institute's Aviation Hall. In the Fall of 1901, the Wright Brothers decided to begin a "series of experiments to accurately determine the amount and direction of the pressure produced on curved surfaces when acted upon by winds at the various angles from zero to ninety degrees." To do this, they built a wind tunnel. Believe it or not, the Wright brothers credited their success to the investigations that they did in their workshop in Dayton, Ohio, rather than all of their test glides. If you like to fly, you owe some thanks to Wilbur and Orville Wright, two hobbyists who became scientists and then achieved first flight. WATCH: Ingenious: The Evolution of Innovation.Harry Potter: The Exhibition - FINAL WEEKS!.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |