Gu Man, director of the China Academy of Chinese Medical Sciences, explained that the existence of these needles represent ...

This is because most cast-iron skillets fall into one of two categories: very cheap or very expensive. There’s not much in ...

This article was originally published with the title “ Conversion of Cast Iron Into Wrought Iron—The Heaton Process ” in Scientific American Magazine Vol. 20 No. 14 (April 1869), p. 218 doi ...

A standout among these is kaolin clay, which is gaining renewed interest for its purity, heat resistance, and non-reactive properties. While it’s long been used in ceramics, skincare, and even ...