The tar from smoking sticks to the surfaces of the teeth and accumulates over time, leading to discoloration that can be difficult to remove without professional intervention
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Assume that the supply of electric cars is fairly inelastic, but the consumers' demand for such cars is fairly elastic
As H L Mencken noted there is nothing spiritual in the Universe that the human mind can comprehend, so its safe to hypothesis that both Karl arc and the Catholic priest hit the nail on the head
While you're concentrating on this, your cravings will be less demanding
MORE IN SCIENCE Move over, Neanderthals: Our ancestors mated with Denisovans not once but twice, scientists say Evolve or die: Why our ancestors learned to be social more than 320,000 years ago By vibrating the muscles, engineers produce a better prosthetic hand UPDATES: 4:25 p.m.: This story has been updated with additional details throughout
