送交者: chouqilozi 于 2005-3-08, 10:00:14:
回答: 美国两弹元勋汉斯·贝特逝世，终年九十八岁 由 吴礼 于 2005-3-08, 09:08:45:
a review on his neutrino research. He used handwritten
transparencies on the projector, with a pen pointing at the
the content. It is shocking that his hand trembled
the whole time of the 1 hour seminar---it could be seen on
the projection screen. I am totally in awe.