In what ways did China contribute to the spread of technology and ideas throughout the world during
the period from the Sui Dynasty to the beginning of
the Ming Dynasty? How did China benefit from the
process?

Papermaking, printing, gunpowder and the compass - the four great inventions of ancient China-are significant contributions of the Chinese nation to world civilization. China was the first nation to invent paper. ... Printed in Tang DynastyA Buddhist sutra is the first book in the world with a verifiable date of printing.

Correct me if I'm wrong though I hope this helps

the blue glow lasts for about 30 seconds per application. detecting the glow requires a fairly dark room.