Filmed and completed entirely in lockdown during the 2020 COVID-19 pandemic. Since 1945, only a select few in the US government have known the truth about UFOs. In 2020, one of them is finally speaking out. Join Dr. Laura Gale PhD on a harrowing journey through over half a century of disinformation, counterespionage-and mankind's attempts to make first contact.。一位三十岁的男人收到了他母亲的死讯,他回到家乡参加葬礼。虽然他极力想忘却过去的生活,然而他与母亲生活的片段仍然萦绕在他的身边。。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 ...。