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Almost as soon as the first working laser was built in 1960 by Theodore Maiman, reports from users of lasers multiplied regarding the curious effects that light can elicit on living tissue. In 1962, dermatologic surgeon Leon Goldman reported the successful laser removal of unwanted skin markings, specifically tattoos. Fast forward to today, and similar techniques are used to erase birthmarks and pigmentation as well.
In 1967, professor Endre Mester at Semmelweis Medical University in Hungary wondered whether laser beams might cause skin cancer because early radiologists were developing the disease on their hands when exposed to x-rays.
Mester performed an experiment on two groups of shaved mice, aiming a low-powered ruby laser…READ MORE