These crystals of lead iodide formed from a mixture of lead nitrate and potassium iodide. Yiping Zhang, of Xiamen University prepared the fine, flaky crystals by mixing the reagents in boiling water ...

Junior Johnson has not decided what career path he wants to take, but whatever it will be, this fourth former at the McGrath High School in Linstead, St. Catherine, is sure it will be in the field of ...