Adding the element strontium to a color pyrotechnic mix produces a red flame; copper, blue; barium, green; and sodium for yellow. Too much or too little of the chemicals make significant changes ...

But never blue. Pyrotechnicians have tried to produce ... so the brighter and more intense the flame color is going to be. Narrator: But there's a limit. Because temperatures that are too hot ...

K-pop group Le Sserafim has reunited with Blizzard Entertainment for a new Overwatch 2 collaboration that will bring stylish ...