Stars and Stripes handicap at Arlington Park in Chicago, Illinois. The horse race gets underway. A large number of spectators gather to witness the Star and Stripes handicap. Stand Pat wins the handicap worth $10,000. Discovery finishes in the ninth position.
Dedication ceremony of the Truman Library in Independence, Missouri. Former President of United States Harry S. Truman at the dedication ceremony of the library. Dignitaries including Chief Justice Earl Warren, Herbert Hoover, Mrs. Bess Truman, and Eleanor Roosevelt at the ceremony. Ten thousand people gather for the Masonic rites of dedication. Republican Senate leader William Fife Knowland receives a deed on behalf of the government. Interiors of the library that houses 3 ½ million documents of Truman's seven-year term. At the Truman Museum pictures of Truman with former British Prime Minister Winston Churchill. Another picture of Truman after winning the presidential election of 1944.
The World Series of Logging in Albany, Oregon. Jim Harren of Longview, Washington rolls a log onto water. A boy looks through binoculars. Allen Woodrow cuts a 30-inch-thick wood log with an axe in record time. Malcolm Harper tosses an axe underhand during an axe throwing event. Hap Johnson and Mel Harper climb up 100 feet trees during a tree climbing event. The best logger Hap Johnson being presented the winning trophy.
'Nuclear might ready but safe.' About the safe use of nuclear weapons by the United States Air Force. A nuclear weapon strapped to a trailer, with two armed guards standing nearby. A missile raises up toward launch position. B-52 bombers on a flight line. A B-52 bomber,on ground alert, taxis out for takeoff. B-52 in flight during airborne alert. Remains of a crashed aircraft that carried a nuclear bomb (a "Broken Arrow" event). An Air Force team team looks at the wreckage of the crashed plane in a field as they work to decontaminate the area. The health concerns involve possible local contamination by scattered non-explosive radioactive materials.
Safe use of nuclear weapons by the United States Air Force. A nuclear bomb on a trailer. a C-119 aircraft takes off in background. An animation shows the nuclear material used in weapons. Fissionable material is surrounded by a layer of high explosives.. Detonators being fired simultaneously at the edges of the high explosives causes implosion that exerts pressure on the fissionable material, causing it to compress into a critical mass that results in nuclear explosion. In an event in which the high explosive, itself, is accidentally ignited, it will burn unevenly, and not provide the uniform circumferential pressure needed to cause the core of nuclear material to compress into a critical mass, even though it may be broken up and scattered.. Various safety features of a nuclear weapon. A battery which provides current, armed switch which controls the flow of current. Thermo fuses which ensure protection against fire. Various mechanical devices like safety pins and wires with seals also ensure safety of nuclear weapons and prevent untimely detonation.
Safe use of nuclear weapons by the United States Air Force. A Sergeant (E4) technician works on a nuclear bomb as a Technical Sergeant (E6) supervisor looks on. A Quality Assurance Evaluator takes notes. The technician reacts angrily after dropping a T304C Continuity Tester and his supervisor corrects him. The technician is then questioned by a doctor to ensure his reliability for a nuclear program. Men around an aircraft as a trailer carries a nuclear bomb near the aircraft. The bomb being attached under the fuselage of the plane. Men work in groups using the two men concept to assure that no individual is ever in a position to arm, launch, or detonate a nuclear weapon.
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