Xin Huang

Did you know that papermaking, gunpowder, printing, and the compass, all profound inventions, came from ancient China during the 13th...

Imagine a hot summer day, where outdoor temperatures are scorching. However, you’re lounging on the sofa, enjoying the cool indoor...

Have you wondered what happens to the excess water that flows away when you wash your hands? What can we do with that waste water? Well,...