The inventor of the electronic cigarette, Hon Lik smokes his invention in Beiijng on May 25, 2009. Also known as an 'e-cigarette', the battery-powered device is designed as an alternative to cigarettes, cigars and pipes, and provides inhaled doses of nicotine by delivering a vaporized propylene glycol/nicotine solution, while also providing the physical sensation and flavors similar to inhaled tobacco smoke. Frederic J. Brown/AFP/Getty Images hide caption

itoggle caption Frederic J. Brown/AFP/Getty Images