About 19,000 years ago, a woman from a group of hunter-gatherers died and was buried in a cave in northern Spain. In 1996, ...

The red color of the fire retardant is caused by the chemical component iron oxide, commonly known as rust. The retardant is colored with the component so it is easily seen from the air and by ...

So they needed a cheap way to protect the barns' wood. They mixed skimmed milk, lime, and red iron oxide to make a red, plastic-like coating. The coating protected the wood and kept barns warmer ...

The red color comes from iron oxide, which doesn't play a role in fire suppression but helps make the material visible from the air. The heat from the fire activates the retardant's components ...

This oxygen combined with dissolved iron in the sea to form insoluble iron oxide, which sank to the sea floor. As it settled, sheets of red iron oxide were laid down between layers of silica-rich silt ...

The red color of the fire retardant is caused by the chemical component iron oxide, commonly known as rust. The retardant is colored with the component so it is easily seen from the air and by ...