Give me one Chinese Scientist的資料,plases?

條件:

1.name of scientst

2.year of birth(the scientist)

3.his invention/discovery is?(give a description in 30 words)

4.what is the effect of this invention/discovert to our society?Give your opinion in 30 words.

快~唔該~要交功課~!thx
3 answers 3