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Cotton

$19.00$400.00

Cotton is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus Gossypium in the mallow family Malvaceae. The fiber is almost pure cellulose. Under natural conditions, the cotton bolls will increase the dispersal of the seeds.

The plant is a shrub native to tropical and subtropical regions around the world, including the Americas, Africa, and India. The greatest diversity of wild cotton species is found in Mexico, followed by Australia and Africa.[1] Cotton was independently domesticated in the Old and New Worlds.

The fiber is most often spun into yarn or thread and used to make a soft, breathabletextile. The use of cotton for fabric is known to date to prehistoric times; fragments of cotton fabric dated from 5000 BC have been excavated in Mexico and between 6000 BC and 5000 BC in the Indus Valley Civilization. Although cultivated since antiquity, it was the invention of the cotton gin that lowered the cost of production that led to its widespread use, and it is the most widely used natural fiber cloth in clothing today.

Current estimates for world production are about 25 million tonnes or 110 million bales annually, accounting for 2.5% of the world’s arable land. China is the world’s largest producer of cotton, but most of this is used domestically. The United States has been the largest exporter for many years.[2] In the United States, cotton is usually measured in bales, which measure approximately 0.48 cubic meters (17 cubic feet) and weigh 226.8 kilograms (500 pounds).[3]

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Nylon

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Nylon is a generic designation for a family of synthetic polymers, based on aliphatic or semi-aromatic polyamides. Nylon is a thermoplastic silky material[1]that can be melt-processed into fibers, films or shapes.[2]:2

Nylon was the first commercially successful synthetic thermoplastic polymer.[3]DuPont began its research project in 1930. The first example of nylon (nylon 6,6) was produced using diamines on February 28, 1935, by Wallace Carothers at DuPont’s research facility at the DuPont Experimental Station.[4][5]In response to Carothers’ work, Paul Schlack at IG Farben developed nylon 6, a different formulation based on caprolactam, on January 29, 1938.[6]:10[7]

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Beneath the Lens

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In optical engineering, the objective is the optical element that gathers light from the object being observed and focuses the light rays to produce a real image. Objectives can be a single lens or mirror, or combinations of several optical elements. They are used in microscopes, telescopes, cameras, slide projectors, CD players and many other optical instruments. Objectives are also called object lenses, object glasses, or objective

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Ball Point Pen

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A ballpoint pen, also known as a biro,[1] or ball pen, is a pen that dispenses ink over a metal ball at its point, i.e. over a “ball point”. The metal commonly used is steel, brass, or tungsten carbide.[2] It was conceived and developed as a cleaner and more reliable alternative to dip pens and fountain pens, and it is now the world’s most-used writing instrument:[3] millions are manufactured and sold daily.[4] As a result, it has influenced art and graphic design and spawned an artwork genre.

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Looking up from the Lens

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In optical engineering, the objective is the optical element that gathers light from the object being observed and focuses the light rays to produce a real image. Objectives can be a single lens or mirror, or combinations of several optical elements. They are used in microscopes, telescopes, cameras, slide projectors, CD players and many other optical instruments. Objectives are also called object lenses, object glasses, or objective

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Globe Pill Box

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Tin is a chemical element with symbol Sn (from Latin: stannum) and atomic number 50. It is a post-transition metal in group 14 of the periodic table. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide, SnO2. Tin shows a chemical similarity to both of its neighbors in group 14, germanium and lead, and has two main oxidation states, +2 and the slightly more stable +4. Tin is the 49th most abundant element and has, with 10 stable isotopes, the largest number of stable isotopes in the periodic table, thanks to its magic number of protons. It has two main allotropes: at room temperature, the stable allotrope is β-tin, a silvery-white, malleable metal, but at low temperatures it transforms into the less dense grey α-tin, which has the diamond cubic structure. Metallic tin is not easily oxidized in air.

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Ball Point Pen

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A ballpoint pen, also known as a biro,[1] or ball pen, is a pen that dispenses ink over a metal ball at its point, i.e. over a “ball point”. The metal commonly used is steel, brass, or tungsten carbide.[2] It was conceived and developed as a cleaner and more reliable alternative to dip pens and fountain pens, and it is now the world’s most-used writing instrument:[3] millions are manufactured and sold daily.[4] As a result, it has influenced art and graphic design and spawned an artwork genre.

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X-acto Knife, Broken

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X-Acto is a brand name for a variety of cutting tools and office products owned by Elmer’s Products, Inc. Cutting tools include hobby and utility knives, saws, carving tools and many small-scale precision knives used for crafts and other applications.

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Hydraulic Hose to RockShox Reverb Stealth Dropper Post, 5:1, 5x Magnification

$19.00$400.00

SRAM Corporation is a privately owned bicycle component manufacturer based in Chicago, Illinois, United States, founded in 1987.[2] SRAM is an acronym comprising the names of its founders, Scott, Ray, and Sam, (where Ray is the middle name of company head Stan Day).[2] The company is known for producing cycling components, including some internally developed, such as Grip Shift, EAGLE (1×12), DoubleTap, dedicated 1×11 mountain and road drivetrains and SRAM Red eTap.[3][4][5]

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Metal Fitting with threads (failed) to attache Hose Fitting to Remote of to RockShox Reverb Stealth Dropper Post, 10:1, 10x Magnification

$19.00$400.00

SRAM Corporation is a privately owned bicycle component manufacturer based in Chicago, Illinois, United States, founded in 1987.[2] SRAM is an acronym comprising the names of its founders, Scott, Ray, and Sam, (where Ray is the middle name of company head Stan Day).[2] The company is known for producing cycling components, including some internally developed, such as Grip Shift, EAGLE (1×12), DoubleTap, dedicated 1×11 mountain and road drivetrains and SRAM Red eTap.[3][4][5]

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Metal Fitting with threads (failed) to attache Hose Fitting to Remote of to RockShox Reverb Stealth Dropper Post, 10:1, 10x Magnification

$19.00$400.00

SRAM Corporation is a privately owned bicycle component manufacturer based in Chicago, Illinois, United States, founded in 1987.[2] SRAM is an acronym comprising the names of its founders, Scott, Ray, and Sam, (where Ray is the middle name of company head Stan Day).[2] The company is known for producing cycling components, including some internally developed, such as Grip Shift, EAGLE (1×12), DoubleTap, dedicated 1×11 mountain and road drivetrains and SRAM Red eTap.[3][4][5]

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Stem Connect Hydraulic Brake Hose to Brake Lever, 3:1, 3x magnification (Copy)

$19.00$400.00

SRAM Corporation is a privately owned bicycle component manufacturer based in Chicago, Illinois, United States, founded in 1987.[2] SRAM is an acronym comprising the names of its founders, Scott, Ray, and Sam, (where Ray is the middle name of company head Stan Day).[2] The company is known for producing cycling components, including some internally developed, such as Grip Shift, EAGLE (1×12), DoubleTap, dedicated 1×11 mountain and road drivetrains and SRAM Red eTap.[3][4][5]

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Stem Connect Hydraulic Brake Hose to Brake Lever, 3:1, 3x magnification

$19.00$400.00

SRAM Corporation is a privately owned bicycle component manufacturer based in Chicago, Illinois, United States, founded in 1987.[2] SRAM is an acronym comprising the names of its founders, Scott, Ray, and Sam, (where Ray is the middle name of company head Stan Day).[2] The company is known for producing cycling components, including some internally developed, such as Grip Shift, EAGLE (1×12), DoubleTap, dedicated 1×11 mountain and road drivetrains and SRAM Red eTap.[3][4][5]

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Olive to Connect Hydraulic Brake Hose to Brake Lever, 3:1, 3x magnification

$19.00$400.00

Common roller bearings use cylinders of slightly greater length than diameter. Roller bearings typically have higher radial load capacity than ball bearings, but a lower capacity and higher friction under axial loads. If the inner and outer races are misaligned, the bearing capacity often drops quickly compared to either a ball bearing or a spherical roller bearing.

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Failed Roller Bearing

$19.00$400.00

Common roller bearings use cylinders of slightly greater length than diameter. Roller bearings typically have higher radial load capacity than ball bearings, but a lower capacity and higher friction under axial loads. If the inner and outer races are misaligned, the bearing capacity often drops quickly compared to either a ball bearing or a spherical roller bearing.

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Failed Roller Bearing

$19.00$400.00

Common roller bearings use cylinders of slightly greater length than diameter. Roller bearings typically have higher radial load capacity than ball bearings, but a lower capacity and higher friction under axial loads. If the inner and outer races are misaligned, the bearing capacity often drops quickly compared to either a ball bearing or a spherical roller bearing.