Unlike solar panels, solar thermoelectric generators can convert heat from any source into electricity. But poor efficiency ...

One question, for instance, might be why can't we? Atoms, which are the building blocks of matter, are mostly empty space.

This gold pendant was discovered in 1930 at the cemetery of Chrysolakkos, which means "pit of gold," in the ancient Minoan town of Malia in Crete. Although the famed archaeologist Sir Arthur Evans ...