In the fight to kill planet-cooking carbon emissions, rechargeable lithium-ion batteries have become a core technology. They can power electric cars that get more than 300 miles per charge. They can ...

Despite its name, stainless steel can rust. The material is actually an iron alloy made of several metals, including chromium, that forms a chromium-oxide layer on its surface. That layer prevents ...

Some preparation can help keep your food fresh while the power is out. If a summer heat wave knocks out your power, the food in your refrigerator and freezer is at risk of spoiling, which can be ...