Can we predict earthquakes accurately?
It is said that the seismograph, invented by Zhang Heng, can test the earthquake direction. Is it true?
Vivid pictures and detailed words display a full and productive life of the famous scientist Zhang Heng. His influence still retained to us today. His splendid achievements will activate children’s interest in science and exploration. Through this app, children can know the real history of an ancient Chinese scientist who changed the world.
This app belongs to one of the Scientists Who Changed the World Series. It is the key publishing project of the 12th five-year plan. It introduces scientists who promote the progress of science and technology, and also tells their scientific achievements and daily life.
This series of picture books have exquisite pictures, vivid stories and easy-to-understand contents, which help to activate children’s reading interest and broaden their knowledge scope.

【Characteristics of the app】

Splendid hand drawings to attract children’s interest in reading
Combination of science and interestingness
Interesting games to improve the interaction between parents and children
Brand new reading pattern with cool video

【Customer reviews】

This app is beloved by parents and children. Its vivid pictures and detailed words activate children’s interest in science and exploration.
--- Amazon children’s reading website
My daughter likes this app a lot. She is deeply attracted by its exquisite hand drawings, splendid stories and the ancient Chinese culture.
--- Li Bin
This app is marvelous! It enriches children’s knowledge scope, and children can learn history and science in it.
--- Lee