The Max Plank Institute performs a test flight of a scale model of Orion. No nuclear bombs are used but chemical explosives propel a 100 kg model several km into the air. This is a proof of principle. It is also great fun for scientists, combining flight and explosions. Monday, January 26 1948 Thorium Friday, February 13 1948 Infrastructure Tuesday, March 9 1948 TV Wednesday, May 26 1948 Pretoria Tuesday, June 22 1948 Peenemunde Thursday, June 24 1948 Berlin Wednesday, June 30 1948 Berlin Wednesday, July 7 1948 Berlin Thursday, July 8 1948 Washington Thursday, August 12 1948 Pretoria