a faraday cage or faraday shield is an enclosure used to block electromagnetic fields.a faraday shield may be formed by a continuous covering of conductive material, or in the case of a faraday cage, by a mesh of such materials.faraday cages are named after scientist michael faraday, who invented them in 1836.
circlips are a type of retaining ring. circular push-on retaining rings may be installed in applications where there is no groove. retaining rings are typically made from carbon steel , stainless steel or beryllium copper and may feature a variety of finishes for aesthetics and corrosion protection depending on the type of environment in which they are used.
heat exchangers are devices that transfer heat to achieve desired heating or cooling. an important design aspect of heat exchanger technology is the selection of appropriate materials to conduct and transfer heat fast and efficiently. copper has many desirable properties for thermally efficient and durable heat exchangers. first and foremost, copper is an excellent conductor of heat. this means that copper's high thermal conductivity allows heat to pass through it quickly. other desirable proper
copper is a good choice for gutters and downspouts because it makes strong leak-proof joints. gutters and downspouts made with copper are expected to outlast other metal materials and plastics. even in corrosion-prone seacoast environments or in areas with acid rain or smog, copper gutters and downspouts can provide 50 years or more of service.
electrical power distribution systems are often connected to ground to limit the voltage that can appear on distribution circuits. a distribution system insulated from ground may attain a high potential due to transient voltages caused by arcing, static electricity, or accidental contact with higher potential circuits.
the spiral heat exchanger is good for applications such as pasteurization, digester heating, heat recovery, pre-heating see: recuperator , and effluent cooling. for sludge treatment, shes are generally smaller than other types of heat exchangers. citation needed these are used to transfer the heat. selection
hepatocellular carcinoma hcc is the most common type of primary liver cancer in adults, and is the most common cause of death in people with cirrhosis.. it occurs in the setting of chronic liver inflammation, and is most closely linked to chronic viral hepatitis infection hepatitis b or c or exposure to toxins such as alcohol or aflatoxin.certain diseases, such as hemochromatosis and alpha .
coaxial cable, or coax pronounced / ˈ k oʊ. æ k s / is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric insulating material ; many coaxial cables also have a protective outer sheath or jacket. the term 'coaxial' refers to the inner conductor and the outer shield sharing a geometric axis.
osteogenesis imperfecta oi , also known as brittle bone disease, is a group of genetic disorders that mainly affect the bones. it results in bones that break easily. the severity may be mild to severe. other symptoms may include a blue tinge to the whites of the eye, short height, loose joints, hearing loss, breathing problems and problems with the teeth.
jon catches a dirty little secret inside a navy vet's bar when the surveillance footage reveal the cook taking a shower in the kitchen. at the same time, the vet's friend and unqualified manager's inconsistencies in running a bar have caused a downward spiral which in turn is causing the owner's money to keep going down every month.
a sewing needle, used for hand-sewing, is a long slender tool with a pointed tip at one end and a hole or eye at the other.the earliest needles were made of bone or wood; modern needles are manufactured from high carbon steel wire and are nickel- or 18k gold-plated for corrosion resistance.high quality embroidery needles are plated with two-thirds platinum and one-third titanium alloy.
leadville is the statutory city that is the county seat and only incorporated municipality in lake county, colorado, united states. the city population was 2,602 at the 2010 census and an estimated 2,762 in 2018. leadville is situated at an elevation of 10,152 feet 3,094 m .
magnet wire or enameled wire is a copper or aluminium wire coated with a very thin layer of insulation. it is used in the construction of transformers , inductors , motors , generators, speakers , hard disk head actuators , electromagnets , electric guitar pickups and other applications that require tight coils of insulated wire.
a nipple is a short stub of pipe, usually male-threaded steel, brass, chlorinated polyvinyl chloride cpvc , or copper occasionally unthreaded copper , which connects two other fittings. a nipple with continuous uninterrupted threading is known as a close nipple .
robert hooke first applied a metal spring to the balance in 1658 and jean de hautefeuille and christiaan huygens improved it to its present spiral form in 1674 the addition of the spring made the balance wheel a harmonic oscillator, the basis of every modern clock.
an earring is a piece of jewelry attached to the ear via a piercing in the earlobe or another external part of the ear except in the case of clip earrings, which clip onto the lobe . earrings are worn by both sexes and have been used by different civilizations in different times. locations for piercings other than the earlobe include the rook, tragus, and across the helix see image at right .
swords from the nordic bronze age appear from ca. the 13th century bc, often showing characteristic spiral patterns. the early nordic swords are also comparatively short; a specimen discovered in 1912 near bragby, uppland, sweden, dated to about 1800 to 1500 bc, was just over 60 cm long. this sword was, however, classified as of the .