Solar System About 4‚700 million years ago‚ the Solar System was just a spinning disc of dust and gas. The dust began to collect together and our Sun formed at the centre. Around Sun‚ lumps of rock joined up to form smaller bodies and‚ like the Sun‚ they heated up. But because they were smaller they soon cooled down and became planets. Sun accounts for 99.85 per cent of mass of the solar system. About 1.3 billion earths would fit inside the sun. The solar system consists of the Sun; the nine planets
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First slide: The purpose of “Solar paint” invention is to generate inexpensive electricity because various efforts have been made for this kind of power generation over the previous few decades. It is an environment friendly technology which has eliminated the need of solar cell. It is completely reasonable and sustainable. Solar paint is consisted of organic solar cell paint. These organic solar cells are protected from water through ecofriendly synthetic sheets for example PET and therefore
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with his friends invented an innovative bird feeder that worked on solar power. The feeder used a small solar panel in its roof to build an electric charge. The Solar feeder’s purpose is to use the mild electric shock it generates to repel the squirrels‚ preventing them from stealing the bird seed or damaging the feeder itself. In a typical product-driven approach‚ Bo and his friends started SDI‚ Inc. to produce and promote the solar feeder without having done any marketing plan. After several years
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1. Our solar system is made up of the sun and everything that travels around it. This includes eight planets and their natural satellites such as Earth’s moon; dwarf planets such as Pluto and Ceres; asteroids; comets and meteoroids 2. The sun is the center of our solar system. It contains almost all of the mass in our solar system and exerts a tremendous gravitational pull on planets and other bodies. 3. Our solar system formed about 4.6 billion years ago. 4. The four planets closest to the Sun
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Page No ENERGY TYPES OF ENERGY ENERGY RESOURCES ADVANTAGES AND DISADVANTAGES ENERGY CONSERVATION REFERENCE ENERGY Energy is one of the most fundamental parts of our universe. We use energy to do work. Energy lights our cities. Energy powers our vehicles‚ trains‚ planes and rockets. Energy warms our homes‚ cooks our food‚ plays our music‚ gives us pictures on television. Energy powers machinery in factories and tractors on a farm. Energy from the sun gives us
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Solar seeker: In this project we design a solar seeker to follow a sun. solar seeker follow the sun and if the sensor attach on the sensor a sense a sun then solar seeker is stop automatically. Now after some time sun move from its position‚ then again seeker sensor sense the light and move the motor very slowly. If the sensor sense the signal then automatically stop the seeker . Movement of the seeker is restricted from left to right for limited area. To control the left and right limit
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Anything from beverage bottles‚ nets and rope used to fishing to shopping bags are composed of plastic. In the stream of solid waste‚ containers and packaging such as lids‚ shampoo bottles soft drinks bottles are what plastic are used for. plastic can also be found in non-durable goods‚ for example trash bags‚ cups‚ diapers and utensils which end up n the ocean 50% of the time. durable goods as well such as furniture and appliances. raw materials or plastic pellets that are used in creating these
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Solar eclipse From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Not to be confused with Lunar eclipse. Photo of 1999 total eclipse As seen from the Earth‚ a solar eclipse occurs when the Moon passes between the Sun and Earth‚ and the Moon fully or partially blocks ("occults") the Sun. This can happen only at new moon‚ when the Sun and the Moon are in conjunction as seen from Earth in an alignment referred to as syzygy. In a total eclipse‚ the disk of the Sun is fully obscured
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SOLAR SYSTEM PLANETS MERCURY • The closest planet to the sun‚ Mercury is only a bit larger than Earth’s moon. Its day side is scorched by the sun and can reach 840 degrees Fahrenheit (450 Celsius)‚ but on the night side‚ temperatures drop to hundreds of degrees below freezing. VENUS • The second planet from the sun‚ Venus is terribly hot‚ even hotter than Mercury. The atmosphere is toxic. The pressure at the surface would crush and kill you. Scientists describe Venus’ situation as a runaway greenhouse
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The local council of Greenville recently made a proposal for all houses and businesses to install solar hot-water systems by 2010. Houses and businesses that who have not installed solar hot-water systems by then would be charged a “greenhouse levy”. However some residents have expressed anger over the proposal. “Solar Sellout” published in a local newspaper‚ an opinion piece and its accompanying cartoon written Bob Walsh‚ contends that the proposal which aims to reduce greenhouse gas emissions is
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