This year’s Chemistry HKDSE exam incorporated more diagrams in the questions than previous years, but the level of difficulty was similar, Chemistry teachers said. "About 13,000 candidates took ...

Graphic Products has released an easy-to-use chemical labeling flowchart and infographic, aiding employers and manufacturers to select the appropriate chemical label for safety and compliance.

Caltech scientists have found a fast and efficient way to add up large numbers of Feynman diagrams, the simple drawings physicists use to represent particle interactions. The new method has already ...