Enlightenment sabbatical day 2

Today, I learnt a very cool and interesting topic, LASERs. Yes, they are in capital letters as they are actually an acronym! It stands for light amplification by the stimulated emission of radiation. Thus, the laser is a device which produces and amplifies light. My impression of lasers was beams of light that were extremely harmful to living things; The thing that shoots out of guns and slices through anything in the movie “Star Wars”; The thing that Cyclops shoots out of his eyes in “X men”. However, laser can actually be very useful to humans. For example, lasers are used in practically every major industry, from medicine and computers, to entertainment and construction. Lasers are so useful as they can burn through almost anything. On the other hand, they can be extremely weak so that they can be used as pointers during presentations. As a result, scientists have classified lasers into different classes. Class 1 being the safest and 4 being the most dangerous. Sadly, even the meekest of lasers can harm a person, mainly, the eye. A concentrated light, when shined into a person’s eye, can burn the cornea and retina. Laser is like a double edged blade, it can be very useful to humans but it can also harm humans in many ways. Therefore, it is important to know how to be safe while handling laser. Some safety measures I have leant today are: Never point a laser into someone’s eyes. Never point high power laser beams at any body part. Never use mirrors or crystals to deflect laser.