One Minute to Zero One Minute to Zero One Minute to Zero (1952) is a romantic war film starring Robert Mitchum and Ann Blyth, set during the opening phases of the Korean War, and produced by Howard Hughes as the last film as producer. The film showcases the contributions of the U.S. Army and U.S. Air Force, the South Korean Army, the United Nations, the British Army and the Royal Australian Air Force during the early days of the Korean War. The effects of air power in the Korean War were also vividly depicted through the use of combat footage. Just prior to the
Longitude then the longitude at a point would be equal to the angle between a vertical north–south plane through that point and the plane of the Greenwich meridian. Everywhere on Earth the vertical north–south plane would contain the Earth's axis. But the Earth is not radially homogeneous and has rugged terrain, which affect gravity and so can shift the vertical plane away from the Earth's axis. The vertical north–south plane still intersects the plane of the Greenwich meridian at some angle; that angle is the astronomical longitude, calculated from star observations. The longitude shown on maps and GPS devices is the