Ocean waves are a vast and steady source of renewable energy, but capturing their power efficiently has long frustrated ...

A stream of compressed air does not look like a power source. In factories, it usually hisses through pipes, drives tools, then disappears as waste. But under the right conditions, that same airflow ...

Electricity is indispensable in modern society. Today, man could hardly live without this energy. Suppose, for example, electrical power plant is off for a mont ...

Electricity's story is one of curiosity and innovation. Ancient Greeks noted static electricity. Baghdad Battery hints at early energy use. Gilbert named 'electricus'. Franklin linked lightning to ...