Aim To investigate how parachutes work and whether size matters to performance. Background According to Agee (2010)‚ “As a skydiver is falling‚ the force of gravity is pulling them towards the earth… The parachute slows the skydiver down because it causes air resistance or drag. The air pushes the parachute back up‚ and creates a force opposite to the force of gravity‚ slowing the skydiver down.” Question We wanted to find out how the size of a parachute would affect its descent as we felt slowing
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Silk Silk is a fabric that is used throughout the entire the world. It is a very elegant fabric that many people prize to have. The silk fabric can trace its origins back 4000 years in China. It has a very interesting myth related to it but for all that can be said it may also be the truth. Silk is farmed and manufactured in a method known as sericulture and it is an extensive process but it is almost the same wherever silk is farmed. There are two major types of silk which are pure silk and wild
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SILK Silk is undisputedly the most beautiful of all natural fibers‚ with its unearthly sheen. It is also uncommonly strong‚ even at its finest‚ when it is almost invisible. It is unlike any other fiber used to make fabrics‚ for it is neither grown in a field or on an animal. It is not manufactured in a factory. A humble caterpillar about the size of a woman’s smallest finger produces the silk fiber‚ spinning it out of its mouth‚ using tiny fore-legs to place the silk where it should go. It is
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Silk - the queen of all fabrics is historically one of India’s most important industries. India produces a variety of silks called Mulberry‚ Tasar‚ Muga and Eri‚ based on the feeding habit of the cocoons. The sericulture industry today employs over 700‚000 farm families and is mostly concentrated in Karnataka‚ Tamilnadu and Andhra Pradesh and to some extent Assam and West Bengal. Karnataka accounts for more than 70 percent of the country’s total silk production. Sericulture is one industry which
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Sericulture‚ or silk farming‚ is the rearing of silkworms for the production of raw silk. Although there are several commercial species of silkworms‚ Bombyx mori is the most widely used and intensively studied. According to Confucian texts‚ the discovery of silk production byB. mori dates to about 2700 BC‚ although archaeological records point to silk cultivation as early as the Yangshao period (5000 – 3000 BCE).[1] About the first half of the 1st century AD it had reached ancient Khotan‚[2] and
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History of silk Silk‚ one of the oldest fibers known to man‚ originated in China. The history of silk is both enchanting and illustrious. Following sections cover the various facets of silk history. [For general silk information‚ please visit the All About Silk section‚ which covers various related subjects‚ such as Advantages of Silk‚ Cleaning Silk‚ How Silk is Made‚ Silk Info Dictionary‚ and Interesting Facts about Silk.] The Legend The Silk Road A Well-Kept Secret Sericulture
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Spider silk What is Spider silk? Spider silk is incredibly tough and it is stronger by weight than steel. Quantitatively‚ spider silk is five times stronger than steel of the same diameter. It has been suggested that a Boeing 747 could be stopped in flight by a single pencil-width strand and spider silk is almost as strong as Kevlar‚ the toughest man-made polymer. It is finer than the human hair and is able to keep its strength below -40°C. Spider silk is also very elastic and capture
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Greater Noida Report on Nalli Silk Sarees (A) Submitted to:- Submitted by:- Prof. Ganesh Khanna Ria Arora Dr. Taruna Gautam Ruchi Gosai Prof. Amit Kumar
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Paragraph 3: 5/5 What are some possible human uses for spider silk? 5/5 How are humans influenced by spider silk when developing products or new inventions? 5/5 Are there other organisms that produce silk besides spiders? If so‚ describe the organisms. A spider’s silk is made up of a chain of amino acids. This means that it is a protein. There are two primary amino acids called glycine and alanine. Spider silk is very strong and is about five times strong than steel and twice as strong as
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Question: To what extend would you agree with this description of the Silk Road (Internet of Antiquity) and his (Yo-Yo Ma) comparison of it to the Internet of our world today? A comparison of the Silk Road and the Modern Internet surprisingly reveals that these two systems share their own similarities and differences. From analyzing both systems‚ it came up that the modern internet could be a repeat of what happened in the Silk Road‚ although in a more advances and modernized way! Now‚ although
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