单词:halfcracked
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When Stephen Hawking was writing A Brief History of Time, his editors told him that he would lose half of his readers for each equation (方程式) he put in the book. Despite this warning, Hawking found it necessary to include one equation. His choic
THE MAKING OF A NATION - American History: The Dawn of the Atomic Age STEVE EMBER: Welcome to THE MAKING OF A NATION American history in VOA Special English. Im Steve Ember. This week, we continue our series of time capsule programs, each one explori
Five Minutes to Midnight 滴!答!滴!毁灭倒数计时 by Kevin Lustig The University of Chicago publishes the Bulletin of the Atomic Scientists, a magazine about topics related to nuclear technology. On the cover of every issue of the magazin
VOICE ONE: THE MAKING OF A NATION -- a program in Special English by the Voice of America. (MUSIC) Ruins left by the bomb dropped on Hiroshima August 6, 1945 World War Two ended with one of the most i
THE MAKING OF A NATION - American History: Developing the First Atomic Bombs STEVE EMBER: Welcome to THE MAKING OF A NATION American history in VOA Special English. Im Steve Ember. (MUSIC) World War Two ended with an action that was never taken befor
By Stephanie Ho Washington 17 January 2007 watch Doomsday Clock report An international group of atomic scientists is warning of the dual threats to the world posed by nuclear weapons and climate change. VOA's Stephanie Ho reports from Washington. K