First, there's the fact that it isn't exactly like the real thing. Vaping feels more like smoking a hookah (water pipe), and the nicotine high, for lack of a better word, never reaches the altitude of a Marlboro or Lucky Strike. An e-cig can only ever hold me over.
DEFINITION of 'Energy Sector'. A category of stocks that relate to producing or supplying energy. This sector includes companies involved in the exploration and development of oil or gas reserves, oil and gas drilling, or integrated power firms. Next Up.
Radiant energy. https://www.sciencedaily.com/terms/radiant_energy.htm. Radiant energy is the energy of electromagnetic waves. The term is most commonly used in the fields of radiometry, solar energy, heating and lighting, but is also used less frequently in other fields (such as telecommunications). The quantity of radiant energy may be calculated by integrating radiant flux (or power) with respect to time and, like all forms of energy, its SI unit is the joule.