Did you know that by ionising the air with wires, you could make a loudspeaker? Simply put, creating an electric field strong enough to ionise the air molecules in a network of parallel wires or a plasma transducer can result in the production of sound. The charged ions are then driven along
New Mexico [USA], July 22 (ANI): The galaxy NGC 4217 is a star-forming, spiral galaxy, similar to our own Milky Way, 67 million light-years from Earth in the constellation Ursa Major.