Goats can get two kinds of lice: sucking lice and biting lice. Biting lice eat dead skin cells on the goats and make them itch. Sucking lice are more serious â they not only cause itching, but they suck the goats' blood, which can lead to anemia.
South-west China lies in an area that is prone to earthquakes. An earthquake in Sichuan in 2008 killed tens of thousands of people. And in 1970, a magnitude 7.7 quake in Yunnan killed at least 15,000 people.
Interesting topic of Ancient Chinese Earthquake Detector. In 2005, scientists in Zengzhou, China (which was also Zhangâs hometown) managed to replicate Zhangâs seismoscope and used it to detect simulated earthquakes based on waves from four different real-life earthquakes in China and Vietnam. The seismoscope detected all of them.