介绍:
Archimedes and the golden crown
One day in ancient Greece, King Hiero asked a crown make to make him a golden crown. At first, he was very happy with it.
"It's a nice crown, isn't it? " he asked his men. Later, however, he began to doubt that it was a real golden crown. "Is it made completely of gold? " he wondered. He sent it to Archimedes and asked him to find out the truth.
…… …
大家还在听
