They did! But before we get to what happened to them, here’s a quick history: The first portable dry cell batteries were invented in the late 1800s, but by World War I it became ...

The best young spellers in the English language are set to compete at the Scripps National Spelling Bee, which celebrates its ...

Periodic nanostructures along the polarization direction of light are observed inside silica glasses and tellurium dioxide single crystal after irradiation by a focused single femtosecond laser beam.