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Environmental science - Essay Example

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Video 1: “Ways to Save the Planet: Space Sunshield (2009)” Source: www.yourdiscovery.com/web/ways-to-save-the-planet/   Created by Discovery Channel, this video shows the project of Professor Roger Angel in which he attempts to deflect the sun's rays by blanketing the earth's atmosphere with ultra-light and ultra-thin lenses. These lenses are designed to deflect 2% of the sun's energy away from the earth, thereby reducing the earth's temperature to levels similar in the pre-industrial period…
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Environmental science
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Environmental science

The goal is to create 16 trillion pieces of lenses that are 1 micron thick and 60 cm in diameter. These lenses are expected to cover 100,000 square miles of the earth's atmosphere. So far, Dr. Angels has created a 5-cm thick glass refractor which is tested by etching a diffraction pattern in it and subjecting it to a laser beam. To test if the lenses can withstand the pressure of a rocket launch, a test launch powered by electromagnetic propulsion was conducted. On-board cameras were installed to capture images of the lenses as they launch into space. Unfortunately, at 900 meters into the air, the craft carrying the lenses failed and crashed.   This video shows how the interaction of physical sciences like physics and engineering works to mitigate the effects of global warming. Through physics, a refracting lense etched with a diffraction pattern is created. Through engineering efforts, meanwhile, the task of getting these refracting lenses into space can be accomplished. If successful, these technological efforts can yield ways and means of saving our planet. ... Read More
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