Today in Science: On Dec 10,1954, to determine if a pilot could eject from an airplane at supersonic speed and live, Lt. Col. John Paul Stapp, a flight surgeon, rode a rocket sled to 632 mph. The Sonic Wind was the rocket powered sled that Stapp rode at Holloman Air Force Base, New Mexico. The sled’s rocket motors generated 40,000 lbs. of thrust and he reached a speed of 632 mph in five seconds. At the end of the ride Stapp was stopped in 1.25 seconds which subjected him to 40 Gs. It was the equivalent of hitting a brick wall in a car traveling at 120 mph.
Today in 1860, a series of photographs of a total solar eclipse were made by Warren De la Rue in Spain, The value of photography as a means of investigating the solar appendages was demonstrated when the images were compared at various stages of the eclipse.
This week we are celebrating Global Youth Service Day! This Sat. Apr 27 & Sun Apr 28, we will be a collection site for items currently needed by the Topeka Rescue Mission. Children bringing ONE OR TWO of the following items to the Discovery Center will get in at half-price!