There are two main types of electrical current that flow through your home: Alternating and direct. The vast majority of devices around you are powered by alternating current. By allowing electrons to ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Download this article in PDF format. Wind turbines larger than 6 MW are becoming common, particularly for offshore installations, where consolidating several smaller wind turbines into one large ...

Patent model for Bell DC generator, 1876. Magnetized octagon steel bar 7.5" long with revolving wheel. Contact springs in center of bar. Two binding posts. See US Patent 181553, Generating Electrical ...

The battery as we know it today was an invention of Italian chemist and physicist Alessandro Volta. He witnessed electricity splitting water into its constituent elements of oxygen and hydrogen and ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. No extant maker's markings. This ...