视频简介
核试验科教记录片。是自人类发明原子弹、氢弹以来的各种核爆炸记录，采访了许多美国参与核试验的专家，非常珍贵的第一手资料。著名的“小男孩”（广岛）和“胖男人”（长崎）就在这里，不可不看！ On July 16, 1945, at a site called Trinity, a plutonium bomb was assembled and brought to the top of a tower. The bomb was detonated, producing an intense flash and a fireball that expanded to 600 meters in two seconds. The explosive power was equivalent to 18.6 kilotons of TNT. It grew ...。We take our liberties for granted. They seem absolute and untouchable. But they are the result of a series of violent struggles fought over 800 years that, at times, have threatened to tear our society apart. On the frontline was a document originally inked on animal skin – Magna Carta. Distinguished constitutional historian David Starkey looks at the origins of the Great Chart...。
