বুধবার, ২৩ ফেব্রুয়ারী, ২০১১

Basic Theory For Satellite Work

For 10,000 years man has wondered about questions such as "What holds the sun up in the sky?" , and "How do they (the sun and the moon) return from the far west back to the far east to rise again each day?" It is only in the last 300 years, our description of course is based on fundamental laws put forth by the English genius Sir Isaac Newton in the late 17th century.The first of newton laws, which was a logical extension of earlier work by Johannes Kepler, proposed that every bit of matter in the universe attracts every other bit of matter with a force which is proportional on the product of there masses and inversely proportional to the square of the distance bet ween the two bits. That is , larger masses attract more strongly and the attraction gets weaker as the bodies are moved farther apart.     

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