<a href="https://en.wikipedia.org/wiki/Nikola_Tesla" id="mwvA" rel="mw:WikiLink" title="Nikola Tesla">Nikola Tesla</a> delivers a lecture describing the equipment which will allow efficient generation and use of <a href="https://en.wikipedia.org/wiki/Alternating_current" id="mwvQ" rel="mw:WikiLink" title="Alternating current">alternating currents</a> to <a href="https://en.wikipedia.org/wiki/Electric_power_transmission" id="mwvg" rel="mw:WikiLink" title="Electric power transmission">transmit electric power</a> over long distances.