以色列恐埃及暴乱危及和平

蚕丝

史上最强天然纤维Silk is the strongest natural fiber in the world, as far as we know. Scientists long to understand just how exactly the silkworm manages the process of silk weaving, so they can r...

童话听写:三只小猪07

As usual, the little pig arrived at the fair in advance. He bought a lot of food and a bucket. This time, the wolf had learnt his lesson and was waiting for the little pig on his way back. The l

科学60秒:泰坦尼克已成微生物美餐

In the spring of 1912 an iceberg in the Atlantic took down the Titanic. Now, some humble bacteria are trying to finish the job. Scientists analyzing rust from the sunken ship have discovered a ne...

CNN 新闻100篇 News Item 70

CNNThe H1N1 virus is spreading from coast to coast, a lot faster than many had expected. The hardest hit areas are in the southeast, the Great Lake region, and in out west. The Department of Educ...