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Quantity: 1000 PCS/box (small error) 50 PCS/boxMaterial: copperPin thickness: 0.53mm
Length: 21.5 mmColor: multi-color optional
Color reference :(actual shooting - small error)
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1 the origin
The origin of the safety pin can be traced back to the 14th century BC in the mathenese culture (late third age). It was called& other; Fibulae” (mode, singular is fibula), the use of which is the same as today's safety pin and has a similar appearance. But theThe rear safety pin was lost.It wasn't until 1849 that modern safety pins were introduced by the American inventor watt · Walter Hunt reinvented itAt the time the patent was sold for four hundred dollars.2 the concept
Introduction to the
The pin, whose real name was invented in the middle of the 19th century, made it easy to quickly find a useful piece of information from a pile of documents.People began to pin up papers in one corner of the paper with a tailor's pin, but they often pricked their fingers. Invent a safety systemThe idea of office supplies came to three minds almost at once, but today it is widely believed that paper clips were inventedThe Norwegian mathematician John middot; Waller, because the dates on his sketches are early in the trio; & ndash; In 1899.In Norway, this has always been a source of special pride. During world war ii, the German occupation forces forbade the norwegians from using the king of NorwayInitials and paper clips were worn to emphasize loyalty to national traditions. Not only that,In February 1990, a five-meter-high paper-clip stainless steel monument was erected in the center of the capital, Oslo.Little story
About the pin, there is such a small story: once, our country held a conference to study creation. Meeting, Japan's creationExperts into the letter xiong on the rostrum, took out a winding to tighten the needle, at the same time put forward a question. He asked, & other; These paper clipsHow many USES? Throughout the &; A Chinese scholar who was there said there were more than 30. Murakami himself has proved more than three hundred. bigThe family applauded him warmly. At this time, someone in the audience handed up a note, the note said: I will make a statement tomorrow, proofThese paper clips have a million USES. This person's name is xu guotai. His scheme came to be known as the magic ball phenomenon. The rootAccording to his argument, paper clips can be used as weights for the same weight; As a metal object, paper clips can be mixed with various typesAcids and other chemicals produce an unknown number of reactions; Paper clips can become 1, 2, 3, 4, 5, 6, 7, 8,9 and addition, subtraction, multiplication and division; Into English, into Latin, into the Russian alphabet, and all the languages of the world,Paper clips can be used. In addition, paper clips are metal can also conduct electricity, magnetic reactions in the magnetic field; In art, putIt is stretched and can act as the strings; It can also make clips, ropes, chains, necklaces … & hellip;
