It was the dawn of not just a new century, but a new metal millennium. After a bumpy decade for heavy metal on the whole, a resurgence for the genre's veteran acts as well as relative newcomers ...

Ram Mohan looks at how bismuth — a remarkably harmless element among the toxic heavy metals in the periodic table — has sparked interest in areas varying from medicinal to industrial chemistry.

(Whey is the liquid byproduct of cheesemaking.) Plants naturally absorb heavy metals from the planet’s crust but can contain elevated levels if grown in soil that has been further contaminated ...