Here are nine things you should know about Start of Spring.

China's 24 Solar Terms, the ancient Chinese knowledge of dividing a year through the observation of the sun's annual motion, was inscribed on the World Intangible Cultural Heritage List in 2016 ...

ASTM A941-00a Description 1.1 This standard is a compilation of definitions of terms related to steel, stainless steel, related alloys, and ferroalloys. 1.2 When a term is used in an ASTM document for ...