Who invents scissors? and how? unintentionally?
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da Vinci invented scissors. I don't know how he did or if it was intentional or not.
34567
Lewis Waterman in 1884\nhttp://inventors.about.com/library/weekly/aa100897.htm
534167
Johann Wolfgang!\n\nHe discovered furfural, worked on the use of platinum as a catalyst, and invented a lighter, known as Döbereiner's Lamp.\n\n:)
458492
The ancient Egyptians are reported to have fashioned catheters from papyrus, and the ancient Greeks from reeds. A flexible urinary catheter was invented by Benjamin Franklin for the use of his brother.
596060
Excellent question... you actually made me look for the answer in Wikipedia. \n\n"In 1891, Karl Elsener, then owner of a company that made surgical equipment discovered (to his dismay) that the pocket knives supplied to the Swiss Army were in fact made in Germany. Outraged, he founded the Association of Swiss Master Cutlers. Its goal was simple: Swiss knives for the Swiss Army.\n\nElsener began working on what was the predecessor to the modern Swiss Army knife, called the "Soldier's Knife". The original had a wooden handle (as opposed to the plastic and metal seen today), and featured a blade, a screwdriver, a can opener, and a punch. This knife was sold to the Swiss army, but Elsener was not satisfied with its first incarnation. In 1896, after 5 years of hard work, Elsener managed to put blades on both sides of the handle using a special spring mechanism, allowing him to use the same spring to hold them in place, an innovation at the time. This allowed Elsener to put twice as many features on the knife; he added a second blade and a corkscrew."\n\nInteresting. It appear that Elsener, through his company Victorinox, was indeed the inventor of the Swiss Army Knife.
28947
I guarantee u it isnt an easy job to teach left handed people how to do things when you arent left handed yourself. Well what I have done is bought a pair of normal kid scissors for left or right handed and practiced myself a bit then when I thought I had  a good hand on it, Then I'd help the child position their hand in the scissors and on the paper and using the hand over hand technique helped to teach the child. of cource when they do it alone they'll position their hands more comfortably for them. Hope this was helpful.
1016774
What kind of hacking are we talking about? Computer or with an axe?
460600
Barnicles is awesome, but yeah who invented it, good question, never thought of that before...\n\nWho's Imao Christa?
1131207
At least he was not delusional and believed he invented the damn thing! Sorry! That would have been a clueless I Know Everything...Lefty!
404310
cather or a laser. or scissors
521012
Crowbar and tweezers. I'm not sure why, but it's the first thing that popped in my head.
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The edwards scissor hands
445279
The fastening of papers has been historical referenced to as early as the 13th century, when people put ribbon through parallel incisions in the upper left hand corner of pages. Later people started to wax the ribbons to make them stronger and easier to undo and redo. This was the way people clipped papers together for the next six hundred years. \n\nIn 1835, a New York physician named John Ireland Howe invented a machine for mass producing straight pins. Straight pins then became a popular way to fasten papers together, although they were not originally designed for that purpose. Straight pins were designed to be used in sewing and tailoring, to temporally fasten cloth together. \n\nJohan Vaaler, a Norwegian inventor with a degree in electronics, science and mathematics, invented the paperclip in 1899. He received a patent for his design from Germany in 1899, since Norway had no patent laws at that time. Johan Vaaler was an employee at a local invention office when he invented the paperclip. He received an American patent in 1901 -- patent abstract  "It consists of forming same of a spring material, such as a piece of wire, that is bent to a rectangular, triangular, or otherwise shaped hoop, the end parts of which wire piece form members or tongues lying side by side in contrary directions." Johan Vaaler was the first person to patent a paperclip design, although other unpatented designs might have existed first. \n\nAmerican inventor, Cornelius J. Brosnan filed for an American patent for a paperclip in 1900. He called his invention the "Konaclip". \n\nBut it was a company called the Gem Manufacturing Ltd. of England who first designed the double oval shaped standard looking paperclip. This familiar and famous paperclip, was and still is referred to as the "Gem" clip. William Middlebrook, of Waterbury, Connecticut, patented a machine for making paper clips of the Gem design in 1899. The Gem paperclip was never patented.
417242
Something he invented.
713381
Pick a screwdriver with a straight blade (and a ratchet if you want to get complicated).  Without the ratchet as a clue it could be for almost anything, chipping bits out of softer material, scraping stuff off harder material, levering things apart, wedging things open. \nWith the ratchet it's obvious that it was designed for turning something in one direction or the other, probably the hard thin end was inserted in some sort of thin cavity and depending on the position of the lock on the ratchet you can turn the thick end backwards and forwards while the blade part rotates in only one direction. \n\nWhy on earth would anybody want such a tool? \nProbably some sort of ritual purposes.
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Knife, Fork, and Spoon\n\nThe knife and the spoon are of prehistoric origin. Primitive peoples made knives for cutting from bones, shells, and stones, particularly flint, that flaked to form sharp edges. The Egyptians also manufactured knives from flint chipped in such a way as to form serrated edges; the flint pieces were then glued into slots formed from wooden handles. The blade was kept sharp by rubbing it in the hollow of a stone. \n\nThe first spoons were probably seashells or crudely formed stone ladles that provided an ideal way to transport liquids to the mouth. Later knives and spoons were crafted from copper and bronze, clay, wood, ivory, iron, and gold. The fork is a more modern invention. For a long time food was cut into small pieces at the table with a knife, which then was used to spear the pieces and bring them to the person's mouth. It is speculated that the fork was invented to hold down meat (or other foods) while cutting it with a knife. The twelfth-century Italians were the first people known to use a two-pronged fork for eating. By the 1600s, forks and knives were commonplace eating utensils in France and in England; the first fork was brought to North America in 1630 by John Winthrop, governor of the Massachusetts colony. Today flatware for eating is made in colorful plastics for picnic or other casual use, or from silver, silver plate, gold plate, or stainless steel for use in homes and restaurants.
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Inventions\n\nLike many scientists of the Early Modern era Hooke was also a prolific inventor. Some of Hooke's inventions that are still in use:\n\n    * The first anemometer.\n    * The first recording weather station.\n    * A thermometer.\n    * The universal joint.\n    * The spirit level.\n    * The use of rhumb lines to navigate a great circle route.\n    * The compound microscope.\n    * The first Gregorian telescope.\n    * Developed the air pump for Boyle.\n    * The spring driven clock and spring balance wheel.\n    * The anchor escapement for clocks.\n    * The iris diaphragm used in cameras.\n    * Telescope crosshair sight.\n    * The sash window.