... damage caused by increased UV levels. And the threat of skin cancer is only one of many skin complaints that have been linked to excessive UV exposure. Dangers of Ozone Depletion Ultraviolet light consists of the "fastest-moving- photons: this refers to their periodic or wave-like speed rather than their objective speed, which, like all other wavelengths of light, is around 3x108 m/s. Their increased energy damages any living ... cells they come into contact with (Makhijani, 108). The human body has a system in place to protect somewhat against ultraviolet light, which involves the rele...

• Word Count: 1616
• Approx Pages: 6
• Has Bibliography
• Grade Level: Undergraduate

... electricity. A special purpose photocell that is usually found in most sun sensors is the Position Sensitive Detector (PSD). The Position Sensitive Detector allows simultaneous monitoring of both the position and light intensity. The advantages of the Position Sensitive Detector are that it offers outstanding position linearity, high analogue resolution, fast response time and simple operating circuits. B) Digital sun sensor A Digital Sun ... entering the atmosphere, a small projectile object was fired 1 meter into the ground to collect sample of the soil in Mars. Here, a perfectly desi...

• Word Count: 1945
• Approx Pages: 8
• Has Bibliography
• Grade Level: Undergraduate

... until technology increased to a level which would help them explore their curiosities. In the mid 1950's, The Pioneer Space Program began revealing many answers to scientists. Over time this consisted of thirteen satellite's which all possessed objectives in which some were related, and others entirely different. The Pioneer Space Program progressed through four stages: Pioneer's 1-5, Pioneers 6-9, Pioneers 10 and 11, ... their accomplishments. Through extensive travel and extreme reliability, these spacecraft revealed many answers while setting the stage for further exploration of the o...

• Word Count: 1093
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate