In 1899, when Einstein studied at the Swiss Federal Institute of Technology in Zurich, his tutor(导师) was Minkevsky, a mathematician(数学家).
Once Einstein asked Minkevsky, “How can
Three days later, Minkevsky told Einstein the answer was coming! He took Einstein towards a building site and there they set foot on the ground newly covered by cement (水泥) ,
“Can’t you see?” Minkevsky said. “On the old road surface that has long solidified(凝固) and in those places which
Hearing that, Einstein thought long and nodded
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A father was worried about his son,
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When Albert was five years old, his father gave him
Albert didn't like school. The German schools of that time were not pleasant. Students couldn't ask questions. Albert said he
One day Albert told his uncle Jacob how much he hated school,
Albert learned to love mathematics. He was studying the complex mathematics of calculus while all his friends were still studying simple mathematics.
President Xi Jinping
Zhong also has long been devoted to the research, prevention and
Using a