Testing the strength of plant fibers Objectives: To develop knowledge and understanding of the strength of plant fiber in a plant stem. To develop problem solving and experimental skills, for example, information is accurately processed, using calculations where appropriate, experimental procedures are planned, designed and evaluated properly, the use of microscopes, producing valid results and recording results. To develop techniques of measuring the size of plant fibers under microscope using
colonists lived and worked. Powhatan Indian Village Learn about the culture of Pocahontas' people in this re-created village. Explore the Powhatan houses, called yehakins, climb into a dugout canoe and try your hand at grinding corn or weaving plant fibers into rope. Ships Aboard the Susan Constant, Godspeed or Discovery, get a sense of how the colonists may have felt as they crossed the Atlantic in the early 17th century. Try your hand at steering with a whipstaff or tiller. Examine the contents
occurring fiber plant that can be processed into an array of materials and goods. Many, many things that we wear, sleep on, sleep under, walk on, or utilize in wound-care, etc., contain some percentage of cotton. It is a fiber that is used everyday, by everyone, in one way or another. It has qualities that have made it a choice crop for centuries around the world. Today though, cotton is being largely displaced by synthetic fibers that have qualities that exceed the natural crop plant. These fibers
polysaccharides, established in fruits and bast fibers. Most of the structure consists of homopolymeric partially methylated poly-α-(1-4)-D-galacturonic acid residues, but there are substantial 'hairy' non-gelling areas of alternating α-(1-2)-L-rhamnosyl-α-(1-4)-Dgalacturonosyl sections containing branch-points with mostly neutral side chains (1-20 residues) of mainly L-arabinose and D-galactose (rhamnogalacturonan-I). Pectin is the most hydrophilic compound in plant fibres due to the carboxylic acid groups
Fiber is a threadlike material that can be found in a natural or manmade form. Natural fibers derive from various animals, plants and can even be produced by insects. These fibers have been in use since prehistoric times and are currently produced today. The most common natural fibers used are linen, wool, silk and cotton. They have been woven together to create fabrics for clothing and other items. A natural protein fiber, called wool, was discovered before 10,000 B.C.E. and woven into cloth by
also benefited from the illicit drug trade; however violent it may be. During the 1970s, Colombia became well known, as one of the world’s most important drug processing, production, and distribution centers for marijuana and cocaine. The shrubs and plants from which both drugs are derived from and processed has been well known in Colombia for centuries, but until the 1970s drug refiners and traffickers had not taken full advantage. The chewing of coca leaves was very well known in the South American
Fabrics All fabrics are created from tiny hair-like fibers. These can be less than an inch in length or long, strands that goes on and on. These fibers are mixed by twisting them together making a yarn. The yarns are woven , knitted or they are ironed onto the fabric. Manufactured Fibers Manufactured fibers are made from raw substances through being processed in factories. They are not fabrics that are made from natural sources. In the year 1910, rayon was the first man-made fabric
Marijuana is one of the oldest cultivated plants in the world (7). Since it became illegal in 1967 (5), there have been many questions of whether or not it is good for medical purposes. Debates between people that are for and against the use of marijuana in medicine have been heated and in recent years, referendums have been brought up in several states to make it available for medical treatment. Personally, I think that marijuana has the power to be a significant help with certain aliments, however
flowering plant, green in color that has many economically important roles. The hop belongs to the hemp family, Cannabinaceae. There are many features that are distinctive about this plant. A hops plant has yellow lupulin glands between the petals, which is used for preservative and flavoring characteristics in beer. The bitterness of the hop is used to balance the sweetness of the malt, and the essential oils add a flavor and aroma which cannot be achieved by using any other plant. The hop plant is a
most cases, the fashion industry leaves behind a huge environmental imprint ranging from the pesticides in growing cotton to the landfill impact of clothes that wear out and the energy needed to manufacture every piece. Therefore, deciding on organic fibers or sustainable fabrics made from bamboo can also reduce the quantity of carbon emitted and chemicals brought into people`s lives. This shows how sustainable fashion if embraced can bring benefits to the consumer, the producer, and to the environment
Cocos nucifera Cocos nucifera is the scientific name of the common coconut. This very tall palm tree is always an inviting symbol of the tropics. The plant is one of the most valuable plants to man. It is a primary source of food, drink, and shelter. In Sanskrit the coconut palm is called "kalpa vriksha", which is defined as "the tree which provides all the necessities of life." Man can use every part of the coconut. The white nut-meat can be eaten raw or shredded and dried and used in most
DuPont makes a variety of high-value products for industry today, including polymers, chemicals, fibers, and petroleum products...products for agriculture, electronics, transportation, apparel, food, aerospace, construction, and health care. DuPont serves customers in these and other industries every day, offering "better things for better living" as the company prepares to begin its third century of scientific, technological, commercial, and social achievement. DuPont is a research and technology
soils are further categorized into two major groups: mineral soils and organic soils. Histosols (organic soils) typically contain at least 46 cm of organic matter in the upper part of the soil profile. They are grouped by the degree to which plant material and fibers are decomposed. Most decayed are the saprists (muck), followed by hemists (mucky-peats and peaty mucks), and fibrists (peats), the least decomposed. (Folists, the fourth group of organic soils, are not regarded as hydric soils because the
manufacturers of photographic equipment. It develops, manufactures, and markets photographic and chemical products for both amateur and professional photographers. The company's other products include X-ray films, pharmaceuticals, copier-duplicators, acetate fibers, polyethylene, polypropylene, polyester, and videocassettes. Kodak also provides film and equipment for commercial fields such as the healthcare and motion picture industries. Kodak also manufactures photographic equipment for the government’s aerial
What are the advantages and disadvantages of natural and synthetic fibers in clothing? Natural and synthetic fibers are a crucial part in the creation of clothing worldwide. A fiber is a raw material with properties including the suitable length, pliability and strength, all qualities that give it the ability to be used in fabrics and yarns. Fibers consist of different types of polymers, and all fibers are made of polymers. ("Polymer (chemistry)"). A polymer is a large, or macromolecules formed
Purpose of treatment: Fiber supplements benefit the body through maintaining regularity in the digestive system. Fiber supplements assist the body in compensating for fiber deficiencies when there remains an inadequate amount of fiber in the digestive system. In addition, fiber supplements help to relieve constipation. Fiber can become an aid in weight reduction as well. In all fiber supplements assist in the maintenance of good health and nutrition. B. Rationale of fiber supplements: After
Ligaments are tough, non-stretchable fibers that hold bones together. Damage to cruciate ligaments, which crisscross the knee to give it stability, is one of the most common sports injuries. The “tear” occurs from changing direction rapidly, slowing down from running, or landing from a jump improperly. The A.C.L tear is one injury that worries athletes in all sports at all levels because of its devastating effects. People ages 15-25 that participate in basketball and other sports that require pivoting
referred to as muscle fibers, these fibers are skeletal muscle fibers, smooth muscle fibers and cardiac muscle fibers. The anatomy of a skeletal muscle fiber is formed during embryonic development. Skeletal muscle fibers arise from a hundred or more small mesodermal cells called myoblasts. The mature skeletal muscle fiber has a hundred or more nuclei. Once fusion occurs the skeletal muscle fiber will lose the ability to undergo cell division. This means that the number of muscle fibers is set before birth
brain that control thought, memory, and language. It can only be diagnosed by a histopathologic examination, to check for the presence of tangles and plaques, which are primary causes of Alzheimer's. Neurofibrillary tangles are bundles of twisted fibers that accumulate in the cell bodies of neurons. Neuritic plaques are round or oval lesions consisting of an amyloid protein core surrounded by fragments of damaged neurons. These types of lesions occur in the cerebral cortex and hippocampus, the regions
polish to the needle, reducing friction. Once, when his wife called him to dinner, he wiped the liquid from his hands onto a piece of pony-fur cloth. When he returned to his workshop, he saw that the fibers on the cloth were now standing straight. He conceived that the fluid had actually straightened the fibers. In order to confirm his theory, he decided to apply some of the fluid to the hair of a neighbor's dog. The fluid straightened the dog's hair so much, that the neighbor, not recognizing his own