Today, Earth’s core is actually two pieces. There’s an outer layer of molten metal about 1,795 miles thick. Inside that layer of molten metal lies a solid sphere of iron and nickel: the inner ...

However, the impact of metal texture has largely been overlooked in battery development. Soft metals like lithium and sodium have excellent properties for being batteries’ negative electrodes, ...

Sheet Metal Patchwork - Tech Project. Don't Throw That '64 In The Gutter And Go Buy Another. HOT ROD Staff Writer Sep 01, 2008. See All 18 Photos.