Solar Energy Solar energy in one form or another is the source of nearly all energy on the earth. Humans‚ like all other animals and plants‚ rely on the sun for warmth and food. However‚ people also harness the sun’s energy in many other different ways. For example‚ fossil fuels‚ plant matter from a past geological age‚ is used for transportation and electricity generation and is essentially just stored solar energy from millions of years ago. Similarly‚ biomass converts the sun’s energy into a
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varies‚ from knowing that a fruit is ripe to eat‚ to understanding how colour can affect and influence our lives. Scientifically‚ colour is is known as light of different wavelengths and frequencies and light is just one form of energy that we can actually see that is made up from photons. We are all surrounded by electromagnetic waves of energy of which colour is a small part. Color can influence our emotions‚ our actions and how we respond to various people‚ things and ideas. Much has been studied
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optical disc video recording format called "Blu-ray Disc". The Blu-ray Disc enables the recording‚ rewriting and play back of up to 27 gigabytes (GB) of data on a single sided single layer 12cm CD/DVD size disc using a 405nm blue-violet laser. By employing a short wavelength blue violet laser‚ the Blu-ray Disc successfully minimizes its beam spot size by making the numerical aperture (NA) on a field lens that converges the laser 0.85. In addition‚ by using a disc structure with a 0.1mm optical transmittance
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• Historical Milestones Development of Light Theory • • 2. Historical Development Isaac Newton – Particle Theory & Prism Christiaan Huygens – Wave Theory Thomas Young – Double-Slit Experiment James Maxwell – Electromagnetic Theory Heinrich Hertz – Radiowaves & Wireless Experiment William Roentgen – X-rays Max Planck – Radiation Theory Albert Einstein – Photo Model • 3. Isaac Newton (1642-1727) Particle Model of Light (1671) Light rays is comprised of a stream of massless particles
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Properties of Light Purpose: The ideal purpose of this lab activity is to investigate the relationship between the frequency of the light (color) and the energy produced by different colors of light. Other purposes of this experiment include calculating the proper current for each LED‚ measuring the evaporation rate of rubbing alcohol‚ and being able to discuss the outcome of the relationship in light energy and the color of the light producing the energy. Materials: Light Emitting Diodes
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find the information needed to complete this assessment. Recall that personal web pages‚ company advertisements‚ and other similar web based resources may not be reliable. The best resources will be governmental‚ educational‚ or scientific in origin. 1. In your own words‚ explain how Doppler radar works. Describe the properties of electromagnetic waves and interactions that make Doppler radar possible. (13 points) A Doppler radar is an important tool used to measure the velocity and direction
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the objects picture a description of what happens when light ray is shone on it. The source of light is a light bulb from a ray box. If a beam of light of one colour is shone through a prism‚ the direction of the beam is changed by the prism. This is because the two faces of the prism through which the light passes are not parallel. If white light is used the prism splits up the light into a series of colours. This shows that white light is actually made up of many other colours - a fact first
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swift ride through river rapids‚" as well as "beautifully written and funny." In "A Blizzard Under Blue Sky‚" the exhilaration comes from sharing a winter adventure in the foothills of the Rocky Mountains‚ while the beauty of the writing is exemplified by this magical description of snow: "[it] stopped being simply white and became translucent‚ hinting at other colors‚ reflections of purples and blues and grays." Much of the humor in the story is based on the American fondness for believing that pets
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Photosynthesis Lab Report Introduction The lights are essential for photosynthesis and it plays a major role. All the food we eat and all the fossil fuel we use is a product of photosynthesis‚ which is the process that converts energy in sunlight to chemical forms of energy that can be used by biological systems. Photosynthesis is carried out by many different organisms but usually by plants and algae. All these organisms convert CO2 (carbon dioxide)
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Xxx.comTheories of light In the seventeenth century two rival theories of the nature of light were proposed‚ the wave theory and the corpuscular theory. The Dutch astronomer Huygens (1629-1695) proposed a wave theory of light. He believed that light was a longitudinal wave‚ and that this wave was propagated through a material called the ’aether’. Since light can pass through a vacuum and travels very fast Huygens had to propose some rather strange properties for the aether: for example; it must
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