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Nicolas Robu's info tech prez
Transcript of Nicolas Robu's info tech prez
Age: 80 years First traces of using a magnifying device were with the Egyptians. The Egyptians used chips of crystals or obsidian to better view small objects. Roman Emperor Nero was known to have used gemstones to look at actors that were far away If you ever need to make a fire or need to burn something and don't have a lighter handy, you can use the magnifying glass to focus the light rays of the sun to to create a small flame on your object. For children (mostly boys), they can use the magnifying glass to "annoy" insects like ants... Not the best way to cure boredom but so be it. Magnifying glasses; Magnify words Focus light rays Are great for looking at bugs and plants Are traced to Roman and Egyptian times (magnifying devices) One of the first ever magnifying device was the Aristophanes' lens. From around 424 BC. The Aristophanes lens was a glass globe filled with water, it could magnify letters no matter what size or how dim the room was Facts Magnification depends on the distances between eye, lens and object (the focal length). If the object is too far away, the magnified object would be upside down but still be magnified Made out of a convex lens Most people would think of a magnifying glass as a piece of spy-ware usually associated with Sherlock Holmes By: Nicolas Robu Roger Bacon Traces of magnifying devices Obsidian Crystal Romans A sculpture of Emperor Nero Constructive uses Looking at bees Or flowers Technical uses General uses For people who don't know what this is, this is a convex lens. Have been a great asset in almost everyday life Egyptians The size varies Small Normal Well, big! Thank you for your time today!