Wire

A wire is a single, usually cylindrical, flexible strand or rod of metal. Wires are used to bear mechanical loads or electricity and telecommunications signals. Wire is commonly formed by drawing the metal through a hole in a die or draw plate. Wire gauges come in various standard sizes, as expressed in terms of a gauge number. The term wire is also used more loosely to refer to a bundle of such strands, as in 'multistranded wire', which is more correctly termed a wire rope in mechanics, or a cable in electricity.

Wire comes in solid core, stranded, or braided forms. Although usually circular in cross-section, wire can be made in square, hexagonal, flattened rectangular, or other cross-sections, either for decorative purposes, or for technical purposes such as high-efficiency voice coils in loudspeakers. Edge-woundcoil springs, such as the Slinky toy, are made of special flattened wire.

History

In antiquity, jewelry often contains, in the form of chains and applied decoration, large amounts of wire that is accurately made and which must have been produced by some efficient, if not technically advanced, means. In some cases, strips cut from metal sheet were made into wire by pulling them through perforations in stone beads. This causes the strips to fold round on themselves to form thin tubes. This strip drawing technique was in use in Egypt by the 2nd Dynasty. From the middle of the 2nd millennium BC most of the gold wires in jewellery are characterised by seam lines that follow a spiral path along the wire. Such twisted strips can be converted into solid round wires by rolling them between flat surfaces or the strip wire drawing method. The strip twist wire manufacturing method was superseded by drawing in the ancient Old World sometime between about the 8th and 10th centuries AD. There is some evidence for the use of drawing further East prior to this period.

Drill

A drill is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for boring holes in various materials or fastening various materials together with the use of fasteners. The attachment is gripped by a chuck at one end of the drill and rotated while pressed against the target material. The tip, and sometimes edges, of the cutting tool does the work of cutting into the target material. This may be slicing off thin shavings (twist drills or auger bits), grinding off small particles (oil drilling), crushing and removing pieces of the workpiece (SDS masonry drill), countersinking, counterboring, or other operations.

Drills are commonly used in woodworking, metalworking, construction and do-it-yourself projects. Specially designed drills are also used in medicine, space missions and other applications. Drills are available with a wide variety of performance characteristics, such as power and capacity.

History

Around 35,000 BCE, Homo sapiens discovered the benefits of the application of rotary tools. This would have rudimentarily consisted of a pointed rock being spun between the hands to bore a hole through another material. This led to the hand drill, a smooth stick, that was sometimes attached to flint point, and was rubbed between the palms. This was used by many ancient civilizations around the world including the Mayans. The earliest perforated artifacts, such as bone, ivory, shells and antlers found, are from the Upper Paleolithic era.

Einstürzende Neubauten

Einstürzende Neubauten (German pronunciation: [ˈaɪnˌʃtʏɐtsəndə ˈnɔʏˌbaʊtən], "Collapsing New Buildings") is a German industrial band, originally from West Berlin, formed in 1980. The group currently comprises Blixa Bargeld (lead vocals, guitar, keyboard), Alexander Hacke (bass, guitar, vocals), N.U. Unruh (custom-made instruments, percussion, vocals), Jochen Arbeit (guitar and vocals), and Rudolf Moser (custom-built instruments, percussion, and vocals).

One of their trademarks is the use of custom-built instruments, predominantly made out of scrap metal and building tools, and noises, in addition to standard musical instruments. Their early albums were unremittingly harsh, with Bargeld's vocals shouted and screamed above a din of banging and scraping metal percussion. Subsequent recordings found the group's sound growing somewhat more conventional, yet still containing many unorthodox elements.

History

Early years

On April 1, 1980, Einstürzende Neubauten made their first appearance in the Moon Club in Berlin. This first line-up featured Beate Bartel and Gudrun Gut, Blixa Bargeld, and N.U. Unruh. The two female members, Bartel and Gut, left the band after a short period of performing and founded Mania D. Alexander Hacke (alias Alexander von Borsig), a sound technician and multi-instrumentalist who was fifteen years old at that time, joined the band and became a long-time member.