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A timeline of United States inventions — encompasses the ingenuity and innovative advancements of the United States within a historical context, dating from the Progressive Era to the end of World War IIwhich have been achieved by inventors who are either native-born or naturalized citizens of the United States. Copyright protection secures a person's right to his or her first-to-invent claim of the original invention in question, highlighted in Article I, Section 8, Clause 8 of the United States Constitution which gives the following enumerated power to the United States Congress : Inthe first patent in North America was issued to Samuel Winslow by the General Court of Massachusetts for a new method popular article editing services united states making salt.

Some examples of patented inventions popular article editing services united states the years and include John Froelich 's tractor[9] Ransom Eli Olds' assembly line[10] Willis Carrier 's air-conditioning[11] the Wright Brothers' airplane[12] popular article editing services united states Robert H. Goddard 's liquid-fuel rocket popular article editing services united states The idea of placing stop signs at road junctions was first conceived in when William Phelps Eno of Saugatuck, Connecticut proposed and devised the first set of traffic laws in an article published in Rider and Driver.

However, the first use of stop signs did not appear until when officials in Detroit, Michigan installed a stop sign with black letters on a white background. Throughout the years and with many alterations made to the stop sign, the current version with white block-lettering on a red background that is used in the United States as well as emulated in many other countries around the world today, did not come into use until the Joint Committee on Uniform Traffic Control Devices adopted the design in The results of a tabulation are electrically coupled with a sorter while displayed on clock-like dials.

The concept of automated data processing popular article editing services united states been born. InHerman Hollerith invented the mechanical tabulating machine, a design used during the Census which stored and processed demographic and statistical information on punched cards.

Opened on June 21, at the Chicago World's Fair, the original Ferris Wheel was invented two years earlier by the Pittsburgh, Pennsylvania bridge-builder George Washington Gale Ferris Jr. Nikola Tesla used these coils to conduct innovative experiments in electrical lighting, phosphorescence, x-ray generation, high frequency alternating current phenomena, electrotherapy, and the transmission of electrical energy without wires for point-to-point telecommunications, broadcasting, and the transmission of electrical power.

The interior end takes a variety of forms depending on its application. In the center of popular article editing services united states exterior end is a metal pin pointing popular article editing services united states the axis of the tube; the pin's end is flush with the end of the valve body.

Generally, all Schrader valves are used on tires. They have threads and bodies of a single standard size at the exterior end, so caps and tools generally are universal for the valves on all automobile and bicycle pneumatic tires. Also, pressure valves can be used on Schrader valves in place of caps in order to measure the pressure of pneumatic tires. InGeorge Schrader, the son of German-American immigrant August Schraderinvented the Schrader valve.

A patent was issued on April 11, Agricultural implements may be towed behind or mounted on the popular article editing services united states, and the tractor may also provide a source of power if the implement is mechanized. While steam powered tractors had been built earlier, InJohn Froelich invented and built the first gasoline-powered tractor in Clayton County, Iowa.

Zippers are found on trousers, jeans, jackets, and luggage. Judson was an American mechanical engineer from Chicago who was the first to invent, conceive of the idea, and to construct a workable zipper. He also conceived the idea of the slide fastener mechanism in conjunction with the invention of the zipper. Patents were issued to Judson for the zipper inpopular article editing services united states, and The spectroheliograph was invented in by George Ellery Hale and independently later by Henri Alexandre Deslandres in It is similar to a sextantin that the device is using mirrors to measure an angle between two objects but differs in that one dials in the height of the object.

The stadimeter was invented in by Bradley Allen Fiskea Rear-Admiral in the United States Navy. However, it may also trap other small popular article editing services united states. Mousetraps are usually set in an indoor location where there is a suspected infestation of rodents.

The first mouse trap was invented by William C. Hooker of Abingdon, Illinois, exactly three years before James Henry Popular article editing services united states developed a prototype called the "Little Canada ghostwriting cheap websites research proposal. Atkinson probably saw the Hooker trap in shops or in advertisements, and copyied it as the basis for his own model.

Medical gloves are made of different polymers including latex, nitrile rubber, vinyl and neoprene; they come unpowdered, or powdered with cornstarch to lubricate the gloves, making them easier to put on the hands. Popular article editing services united statesWilliam Stewart Halstedthe Surgeon-in-Chief of Johns Hopkins Hospitalinvented the medical glove in an effort to make medical care safer and popular article editing services united states sterile for patients and health care workers.

The computer with display, or head unit, usually is attached to the handlebar for easy viewing. InCurtis Hussey Veeder invented the cyclometer. Each team tries to score points against one another by grounding a ball on the other team's court under organized rules. Morgan invented the sport first known as "Mintonnette" in while studying at a YMCA in Holyoke, Massachusetts. It was later renamed essay writer sites states united esl reflective by Alfred S.

It was co-invented in by William Morrison and John C. Wharton, candy-makers from Nashville, Tennessee. On internal combustion engines, the engine exhaust blows out through the muffler. The internal combustion engine muffler was invented by Milton O. Reeves [52] who received a patent in Candy corn is made primarily from sugar, corn syrup, artificial coloring and binders. It is generally thought that George Renninger, an employee of the Wunderlee Candy Company, invented candy corn in the s.

Many of these remotes communicate to their respective devices through infrared signals and radio control. In Madison Square Garden, at the Electrical Exhibition, Nikola Tesla gave the first demonstration of a boat propelling in water, controlled by his remote control which he designed using radio signals.

Tesla received a patent for his invention in The entire wing structure twists slightly in a helical motion in the popular article editing services united states direction. The concept of wing warping is attributed to Wilbur Wright who incame up with the idea and with the conclusion that the roll of an aircraft could be controlled by the motion of that aircraft's wings. Exemplified by the twisting of a long, narrow box, the Wright brothers incorporated wing warping on their glider that used ropes to pull on the wings.

Later on, the young French engineer Robert Esnault-Pelterie replaced wing warping in with the aileron on a copy he made of a 19th-century Wright glider. However, it was Henry Farmana French aviator, who was the first to use the aileron as an integral part click here the wing structure in place of wing warping in It was principally click to see more for flash photography in the early 20th century, but had other uses as well.

The flash-lamp was invented and patented on November 7, by New York City resident Joshua Lionel Cowen. The pins are correspondingly shorter and lighter than their ten-pin equivalents.

Popular article editing services united states, when the pins are knocked down, they resemble a "flock of flying ducks". While the rules remained almost identical to those of the Ten-pin game, one rule change was made: A bowler is allowed to use three bowls on each turn.

Strikes would still be strikes and spares still spares, but when all pins were knocked down on the third ball, it counts as a score of ten. During the summer ofsome bowlers at Diamond Alleys in Baltimore, Maryland thought it might be interesting to resize popular article editing services united states pins to match the 6-inch ball.

Thus, the inventor of duckpin bowling, John Van Sant, used a wood turner to do exactly that. This type of manufacturing greatly reduces the amount of time taken to assemble a product, thus reducing production, material, and labor costs so that an professional content ghostwriters site for masters product cost can be passed onto consumers. Domm, the assembly line and its basic concept is credited to Ransom Oldswho used it to popular article editing services united states the first mass-produced automobile, the Oldsmobile Curved Dash.

King Camp Gillettea traveling hardware salesman of Fond du Lac, Wisconsin invented the double-edged, disposable safety razor attached to a re-usable razor handle. Beforehand, dull razors were taken to barbers for sharpening. With Gillette's double-edged and disposable blades, a uniform shave on a man's face could be achieved with a fresh blade and disposed after it was used.

Gillette applied for a patent in It was granted in Windowed envelopes save the expense of printing or labor of addressing, and in addition save time in preparing the message for dispatch when the customary addresses are already on the letter paper itself. Calling it the "outlook envelope", Americus F. Callahan of Chicago was the first to patent the windowed envelope. Due to radio's ability to travel very long distances and "over the horizon", it makes a particularly good navigation popular critical analysis essay writer site uk for ships, small boats, and aircraft that might be some distance from their destination.

The radio direction finder is the earliest form of radio navigation. It was first patented by American physicist John Stone Stone. He filed on January 23, and was granted the patent U. Patenton December 16, Using a system of coils as a solution to cool and remove moisture from muggy air in a printing plant that was wrinkling magazine pages, Willis Carrier invented and manufactured the world's first mechanical air conditioning unit in Air conditioning not only spawned a company and an industry, but also brought about profound economic, social and cultural changes.

Tea bags were invented by Thomas Sullivan around The first tea bags popular article editing services united states made from silk. Sullivan was a tea and coffee merchant in New York who began packaging tea samples in tiny silk bags, but many customers brewed the tea in them.

The Wright brothersWilbur and Orville Wright of Dayton, Ohio, made the first powered and sustained airplane flights under control of the pilot in the Wright Flyer I on December 17, in Kitty Hawk, North Carolina. This required method has become standard on all fixed-wing aircraft. From the beginning of their aeronautical work, the Wright brothers focused on unlocking the secrets of control to conquer "the flying problem", rather than on developing more powerful engines as some other experimenters did.

Charles Edward Taylor built the first aircraft engine and was a vital contributor of mechanical aspects in the building and maintaining of early Wright engines and airplanes. InMary Anderson is credited with inventing the first popular article editing services united states windshield wiper.

Operated via a lever from inside a vehicle, her version of windshield wipers closely resembles the windshield wiper found on many early car models. Anderson popular article editing services united states a model of her design manufactured. She then filed a patent U. Patent Office on November 10, An "invisible radiation" technique which worked both in infrared daylight communication and ultraviolet night communications, it does not transmit visible light, leaving the 'invisible radiation' as a signal beam.

Wood's glass was invented by Robert Williams Wood in Though the technique for producing a source of ultraviolet light was devised by Robert Williams Wood in using "Wood's glass", not until was the technique used in dermatology by Margarot and Deveze for the detection of fungal infection of see more. Several different types of balers are commonly used, each producing a different type of bales — rectangular or cylindrical roundof various sizes, bound with twine, netting, or wire.

The round hay baler was invented by Ummo F. Luebben of Sutton, Nebraska, which he conceived with his brother Melchior inand then patented in The invention of the round hay baler revolutionized the laborious task of haying into a one-man, low-cost operation with a machine that automatically gathered the hay, rolled into a round bale, and ejected it.

Modern automatic transmissions trace their origins to popular article editing services united states early "horseless carriage" gearbox that was developed in by the Sturtevant brothers of Boston, Massachusetts. It is meant to protect the batter's head from errant pitches thrown by the pitcher.

A batter who is "hit by pitch", due to an inadvertent wild pitch or a pitcher's purposeful attempt to hit him, may be seriously, even fatally, injured.

Ina New York Giants the team now known as the San Francisco Giants baseball player named Roger Bresnahanafter missing thirty days of the baseball season and lying in a hospital bed due to a head injury or beaningcreated, with assistance from the A. Reach Company, a crude, leather, vertically sliced football helmet over his cap that is considered to be the first batting helmet. The headgear was unpopular, even with Bresnahan at the time, and it wasn't until the mids that his idea was accepted.

The liquid ring visit web page was invented in by Lewis H. Production soon began thereafter at the Nash Engineering Company. While the topping varies from place to place, they are almost always served with a wooden stick of sorts in the middle making them easier to eat. Toffee apples are a common treat at autumn festivals in Western culture in the Northern Hemisphere, popular article editing services united states as Halloween and Guy Fawkes Night because these festivals fall in the wake of the annual apple harvest.

Dipping fruits into a sugar syrup is an ancient tradition. However, the origin of the red candy apple is attributed to Newark, New Jersey candymaker who conceived the idea of dipping apples into a red cinnamon candy mixture he had on hand.

In addition, dipping apples in hot caramel a s American invention attributed to Kraft salesman Dan Walker. Skee ball is similar to bowling except it is played on an inclined lane and the player aims to get the ball to fall into a hole rather than knock down pins.

The object of the game is to collect as many points as possible by rolling balls up an incline and into the designated point value holes. Skee ball was invented and patented in by J. Government organizations, businesses, and private individuals use shredders to destroy private, confidential, or otherwise sensitive documents.

The first paper shredder is credited to prolific inventor Abbot Augustus Low of Horseshoe, New York. His patent popular university essay writer website us a "waste popular article editing services united states receptacle" to offer an improved method of disposing of popular article editing services united states paper received a U.

It leaves the paper intact and can be removed quickly and easily unlike the staple. The binder clip was invented in by Washington, Popular article editing services united states. Baltzley who was motivated by a desire to help his father, Edwin, a prolific writer and inventor, keep manuscripts in order. The original design was modified five times, but the essential mechanism just click for source never changed.

InCharles F. Kettering invented the automobile self-starter while working at National Cash Register and then sold them for installation on cars at the Cadillac company. There had been many attempts at producing an electric starter before, but none of them were successful. Most designs at that time called for the use of an electric motor attached to the engine's flywheel. However, in order to fit in the car's engine compartment, the device would have to be small, and therefore it would be unable to produce a sufficient enough amount of torque.

Hines originated the concept of painting a line down the center of a road to separate traffic in opposing directions. They were first used in Wayne County, Michigan in Most people understand an autopilot to refer specifically to aircraft, but self-steering gear for ships, boats, space craft, and missiles is sometimes also called autopilot. The first aircraft autopilot was invented by Lawrence Sperry in Sperry demonstrated it inand proved the credibility of the invention by flying the aircraft with his hands away from the controls and visible to onlookers.

The first electric blanket was invented in by American physician Sidney I. This earliest form of an electric blanket was an 'underblanket' under the bed that covered and heated from below. InElectric 'overblankets which lie on top of the sleeping person were introduced in the United States. Its purpose is to indicate, using a series of colors, the correct moment to stop, drive, ride or walk, using a universal color code.

The color of the traffic lights representing stop and go are likely derived from those editor united movie website states popular review to identify port red and starboard green in maritime rules governing right of way, where the vessel on the left must stop for the one crossing popular article editing services united states the right.

In Salt Lake City, Utah, policeman Lester Wire invented the first red-green electric traffic lights. Formica was invented in by Herbert A Faber and Daniel J. O'Connor of Westinghouse Electric. A regenerative circuit is often an AM detector, converting the RF signal on the antenna to an audio waveform. Their use of positive feedback greatly increases both the selectivity and sensitivity of a simple receiver.

Positive feedback builds up the input signal to very high levels. Edwin Armstronginvented and patented the regenerative circuit while he was a junior in http://89paint.co/best-college-essay-ghostwriters-service-toronto.php, in It is larger in size and has a wider selection than a traditional grocery store. The concept of a "self-service" grocery store was invented by American entrepreneur Clarence Saunders and his Piggly Popular article editing services united states stores.

Beforehand, customers would shop at a general store where a clerk behind a counter would fetch inventory in limited quantity for customers to purchase. With Saunders' new innovation of self-service, customers would be able to kГnnen custom dissertation abstract writers service ca Schmerzen a wider selection of goods at competitive prices.

Saunders' first store opened in Memphis, Tennessee, in The cloverleaf was first patented in the United States by Arthur Hale, a civil engineer in Maryland, on February 29, The design for the toggle light switch was patented in by William J. Newton and Morris Goldberg of Lynbrook, New York. In a stream cipher the plaintext digits are encrypted one at a time, and the transformation of successive digits varies during the dissertation for services chapter writer university custom. Also known as a state cipher, the stream cipher was invented in by Gilbert Sandford Vernam at Bell Labs.

The polygraph was invented in by John Augustus Larsona medical student at the University of California at Berkeley and a police officer of the Berkeley Police Department in Berkeley, Popular article editing services united states. Flowcharts are used in analyzing, designing, documenting or managing a process or program in various fields. The second structured method for documenting process flow, the "flow process chart", was invented by Frank Gilbreth to members of ASME in as the presentation "Process Charts—First Steps in Finding the One Best Click at this page. This easy-to-use dressing with adhesive tape was invented by Earle Dickson in Most headrests are cushioned for comfort, are height adjustable and most commonly finished in the same material as the rest of the seat.

The automobile headrest was invented by Benjamin Katz, a resident of Oakland, California, in Johnson of Detroit, Michigan invented the "Overhead Door", the first upward-lifting source door. To market the garage door, Johnson mounted a small prototype of his door on the back of his Model Popular article editing services united states Ford and drove popular article editing services united states the United States signing up distributors.

During drilling or well interventions, the valve may be closed if overpressure from an underground zone causes formation fluids such as oil or natural gas to enter the wellbore and threaten the rig. InJames Smither Abercrombie collaborated with Harry S. Cameron with the idea of creating a mechanically operated ram-type blowout popular article editing services united states. A patent was issued in January Water skiing began in when Ralph Samuelson popular article editing services united states two boards as skis and a clothesline as a tow rope on Lake Pepin in Lake City, Minnesota.

The sport remained a little-known activity for several years. Samuelson took stunts on the road, performing shows from Michigan to Florida. In the American Water Ski Association formally acknowledged Samuelson as the first on record. Samuelson was also the first ski racer, first to go over a jump ramp, first to slalom ski, and the first to put on a water ski show.

In addition to making length cuts a radial arm saw may be configured with a dado blade to create cuts for dado, rabbet or half lap joints. Some radial arm saws allow the blade to be turned parallel to the back fence allowing a rip popular article editing services united states to be performed.

InRaymond De Walt of Bridgeton, New Jersey invented the radial arm saw. A patent was applied for in and awarded to De Walt in Ina farmer named James Cummings and a draftsman named J.

Earl McLeod co-invented and created the first designs. A replica is on display at the city park in Morrowville, Kansas where the two built the first bulldozer. The cotton swab was invented by Leo Gerstenzang inwho invented the product after attaching wads of cotton to a toothpick.

His product, which he named "Baby Gays", went on to become the most widely sold brand name, "Q-tip". The earliest instant camera, which consisted of Hospenthal, classic english literature essay writing sites updated camera and popular article editing services united states darkroom in a single compartment, was invented in by Samuel Shlafrock.

Land invented a new camera that produced photographic images in 60 seconds. A colored photograph model would follow in the s and eventually receive more than patents for Land's innovations in light and plastic technologies. Traditionally the cheese is placed on top of the patty, but the burger can include many variations in structure, ingredients, and composition.

The term itself is a portmanteau of the words "cheese" and "hamburger. Sternberger is believed to have invented the "cheese hamburger" in the s in the Northeast portion of Los Angeles County. The earliest year attributed to the invention popular article editing services united states the cheeseburger by Popular article editing services united states is inwhile others claimed that he invented popular article editing services united states as late as According to American Heritage"a local restaurateur was identified as the inventor of the cheeseburger at his death in Cooking at his father's short-order joint in Pasadena in the early s, the lad experimentally tossed a slice variety unknown on a hamburger 'and lo!

The popular article editing services united states of the compass is based on the principle of electromagnetic induction with the Earth's magnetic field acting as the induction field for an electric generator. A variation generated voltage, thus allows the Earth inductor compass to determine direction. The earth inductor compass is an American invention. It was designed in by Morris Titterington at the Pioneer Instrument Company.

Designed to compensate for the weaknesses of the magnetic compassthe Earth inductor compass provided pilots with a more stable and reliable reference instrument.

Most are controlled by switches on the garage wall, as well as popular article editing services united states a remote control carried in the garage owner's vehicle. Inthe electric garage door opener was invented by C. Johnson, the inventor of the garage door and founder of the Overhead Door Corporation. InFrancis W. Davis of Waltham, Massachusetts invented power steering. InCity Center Bank, which became UMB Financial Corporation under R.

Crosby Kemper opened what is considered the first drive-up window. Harry and Esther Snyder, the chain's founders, built their first restaurant in Baldwin Park, California, with a two-way speaker to enable patrons to order directly from their cars without the intermediation of a carhop. On March 16, in Auburn, Massachusetts, Dr. Goddardthe "father of modern rocketry", launched the first liquid-fueled rocket in history, which used liquid oxygen and gasoline as propellants.

The automatic commercial bread slicer was invented in by Otto Frederick Rohwedder. His machine both sliced and wrapped a loaf of bread.

Inthe bread slicer was improved by Gustav Papendick, a baker from St. The traditional jukebox is rather large with a rounded top and has colored lighting on the front of the machine on its vertical sides. The classic jukebox has buttons with letters and numbers on them that, when combined, are used to indicate a specific song from popular article editing services united states particular record.

The Automatic Music Instrument Company built and introduced the first electric automated musical instrument which later became known as the jukebox during the s. The garbage disposal was invented in by John W. After eleven years of development, his InSinkErator company put his disposer on the market in Frank Ofeldt in the United States invented the steam pressure washer or "high-pressure Jenny" in The resonator guitar was invented in by John Dopyera.

Perkins popular article editing services united states a method of removing the liquid from a drink called "Fruit Smack" so the remaining powder could be re-packaged in envelopes, which Perkins designed and printed, all under a new name to be called "Kool-Ade".

The name of the powdered drink was later to be changed at a later time to Kool-Aid. Almost all corn dogs are served on wooden sticks, though some early versions were stickless. Although a contending topic as numerous claims of the origins of the corn dog have surfaced, the earliest reference to what resembles a corn dog appeared in U. Jenkins and issued in A competing claim to the invention of the corn dog is by George Boyington, the creator of Pronto Pups made of pancake batter who in orcreated a "batter-dipped, deep fried hot dog" after a rain storm in Rockaway Beach, Oregon ruined and made his hot dogs mushy.

For centuries, Chinese judges had routinely worn smoke-colored quartz lenses to conceal their eye expressions in court. However, these were not intended for blocking sunlight from eyes.

It wasn't until the 20th century that what is now considered to be sunglasses were invented. InSam Foster invented and mass-produced the first tinted eyewear pieces solely intended to block out sunlight.

Freezing food is a common method of food preservation which slows both food decay and, by turning water to ice, makes it unavailable for most bacterial growth and slows down most chemical reactions. Clarence Birdseye offered his quick-frozen foods to the public. Birdseye got the idea during fur-trapping expeditions to Labrador in andwhere he saw the natives use freezing to preserve foods.

In SeptemberGeorge Lehberger devised the basic concept of tilt rotor aircraft, that is, a relatively low disc loading click to see more propeller that can tilt its axis from the vertical for vertical lift to the horizontal for propulsive thrust.

Inventors Paul Galvin and Joe Galvin came up with the name Motorola when their company started manufacturing car radios. Generally, popular article editing services united states cheese of choice is Cheez Whiz, but American and provolone are common substitutions.

The art of cheesesteak preparation lies in the balance of flavors, textures and what is often referred to as the "drip" factor. The cheesesteak was invented in by Philadelphian hot dog vendor Pat Olivieri who one day decided to substitute beef instead of a hot dog in a hoagie bun.

A taxicab driver noticed the alluring aroma and asked for his own sandwich. Through word of mouth, Olivieri's sandwiches the following day were highly sought after by taxi cab drivers around Philadelphia. Due to booming business, Olivieri soon opened up his own shop, Pat's King of Steaks on 9th Street and Passyunk Avenue.

Eventually, according to legend, he added cheese to the steak. The cheesesteak is considered to be a cultural icon of the city of Philadelphia. This is amplified with an instrument amplifier.

The output is altered with guitar effects such as reverb or distortion. The earliest electric guitar, known as a "frying pan"was a hollow bodied acoustic instrument with tungsten steel pickups invented by George Beauchamp and Adolph Rickenbacker in Electric guitars are used in almost every popular music http://89paint.co/cheap-dissertation-abstract-writer-websites-gb.php. Modern uses of strobe lights serve a purpose for safety warning, and motion detection.

Strobes can popular article editing services united states found atop most police cars, ambulances, and fire trucks. The origin of strobe lighting dates towhen Harold Eugene Edgerton invented a flashing lamp to make an improved stroboscope for the popular article editing services united states of moving objects, eventually resulting in dramatic photographs of objects such as bullets in flight.

The result is an extremely low-density solid with several remarkable properties, most notably its effectiveness as a thermal insulator.

It was first invented by Samuel Stephens Kistler inas a result of a bet with Charles Learned over who could replace the liquid inside of a Fruit preserves jar with gas without causing shrinkage. They differ from optical telescopes in that they operate in the radio frequency portion of the electromagnetic spectrum where they can detect and collect data on radio sources.

Radio telescopes are typically large parabolic or dish antenna used singularly or in an array. Karl Guthe Jansky started the field of radio astronomy serendipitous in when his directional antenna found radio static that he later identified as coming from the Milky Way.

Dispensers vary widely based on the tape popular article editing services united states dispense. Clear tape dispensers are commonly made of plastic, and may be disposable. Other dispensers are stationary and may have sophisticated features to control tape usage and improve ergonomics. The first tape dispenser with a built-in visit web page edge was invented in by John A.

Borden, another 3M employee. Used primarily by the United States Armed Forces in the Pacific War against the Popular article editing services united states of Japan during World War II, later versions were thinly armored, and some were equipped with a light tank turret to provide fire click to see more, making them equivalent to light amphibious tanks. Highly versatile in their use, LVT's landed supplies ashore at Guadalcanal and soldiers ashore at Tarawa, other variations of the LVT were equipped with flamethrowers during the Peleliu Campaign.

The LVT was derived from the Alligatoran amphibious vehicle invented by Donald Roebling in as a rescue vehicle for downed aviators in the Florida Everglades. Various parts of the artwork layers are left transparent, to allow other layers popular article editing services united states be seen behind them.

The movements are calculated and photographed frame-by-frame, with the result being an illusion of depth by having several layers of artwork moving at different speeds.

The further away from the camera, the slower the speed. The http://89paint.co/esl-article-review-ghostwriting-site-for-college.php effect is sometimes referred to as a parallax process. As a former director and animator of Walt Disney Studios, Ub Iwerks in invented the multiplane camera using four layers of flat artwork before a horizontal camera.

This produces an intermittent diffusion of the stream that provides a uniform waterfall closer to the sprinkler. Inthe impact sprinkler was invented and patented by lemon tree grower and farmer Orton Englehardt of Glendora, California. In a trampoline, the fabric is not elastic itself; the elasticity is provided by the springs which connect it to the frame. While the trampoline is an old invention which relied on crude and flawed designs, the modern trampoline was popular article editing services united states by George Nissen and Larry Griswold around The acrostic puzzle was invented in by Elizabeth Kingsleyfirst appearing in the March 31 edition of the Saturday Evening Post.

Operated by an applied magnetic field, reed switches are used as reed relays, automotive sensors, robotics sensors, security sensors and are found in many toys and games. The reed switch was invented in by W.

Elwood at Bell Telephone Laboratories. The Phillips-head screw was invented and patented by Henry F. Shorter ovals are called short tracks, unpaved short tracks are called dirt tracks, and longer ovals are known as superspeedways.

On March 8,the first stock car race was held on the Daytona Beach Road Course, promoted by local click the following article Sig Haugdahl. Instock car racing became a regulated sport when Bill France, Sr. Programming languages can be used to create programs that specify the behavior of a machine, to express algorithms precisely, or as a mode of human communication.

The first programming languages predate the modern computer. It was invented by Alonzo Church and Stephen Cole Kleene in the s as part of an investigation into the foundations of mathematics, but has now emerged as a useful tool in the investigation of problems in computability, recursion theory, and as a fundamental basis and a modern paradigm to computer programming and software languages.

Some CFL's fit into light fixtures formerly used for incandescent lamps and they are designed to produce the same amount of visible light found in incandescent light.

InGeorge Inman devised the first practical fluorescent lamp while working for General Electric. Hammer invented the first helical or spiraled compact fluorescent lamp, but due to the difficulty of the manufacturing process for coating the interior of the spiral glass tube, General Electric did not manufacture or sell the device.

Other companies began manufacturing and selling the device in They are the primary onhill transport at most ski areas, but are also found at amusement parks, various tourist attractions, and increasingly, in urban transport. James Curran, an engineer from the Union Pacific Railroad, invented and built the first chair lift in the world.

Known as the Proctor Mountain Ski Lift, it was located in Sun Valley, Idaho. As the object is deformed, the foil is deformed, causing its electrical resistance to change. The strain gauge was invented in by Edward E. Simmonsa professor at the California Institute of Technologyand re-invented in by Arthur C. Rugean earthquake specialist popular article editing services united states the Massachusetts Institute of Technology.

The bass guitar is similar in appearance and construction to an electric guitar, but with a longer neck and scale length, and four, five, or six strings.

Inthe Audiovox bass, the earliest electric solidbody bass guitar made out of walnut and neck-through construction, was invented by Paul Tutmarc of Seattle, Washington. Later inthe bass guitar was perfected when Leo Fender introduced the precision bass, a fretted, solidbody instrument.

Often, customers are allowed to leave the carts in the parking lot, and store personnel return the carts to the please click for source. The first shopping cart was invented by Sylvan Goldman inowner of the Humpty Dumpty supermarket chain in Oklahoma City. Polarized sunglasses were invented in by Edwin Land. Klystrons are used as amplifiers at microwave and radio frequencies to produce both low-power reference signals for superheterodyne radar receivers and to produce high-power carrier waves for communications and the driving force for modern particle accelerator.

Russell and Sigurd Varian of Stanford University are generally considered to be the inventors. Their prototype was completed in August Their large size and light weight take little effort to propel; they popular article editing services united states very slowly and generally must be caught with two hands, making them ideal for lazy games and for children. Their lightness and size make them difficult to use in even moderate wind. The beach ball was invented in California by Jonathon DeLonge in The use of these fibers for textile applications is more recent.

The first commercial production of fiberglass was in Infiberglass was invented by Russell Games Slayter of Owens-Corning. Xerography makes copies without using ink. In this process, static electricity charges a lighted plate; a plastic powder is applied to the areas of the page popular article editing services united states remain white.

The photocopier was invented in by Chester Floyd Carlson who marketed his revolutionary device to about 20 companies before he could interest any. The Haloid Company, later called the Xerox Corporation, marketed it, and xerography eventually became common and inexpensive. After Alex McCullough commissioned Harry Oltz in to design the first soft serve ice cream machine, similar to ones used for making frozen custard, the Dairy Queen franchise was founded when Sherb Noble opened the first store in PTFE is best known by the DuPont brand name Teflon.

PTFE was accidentally invented by Roy Plunkett of Kinetic Chemicals in However, there is no need to stop if his way is clear.

A driver who stops has yielded his right of way to another. The yield sign, popular article editing services united states not the yield traffic rule itself, was invented in by Tulsa police officer Clinton Riggs. It is intentionally a "slow" measurement, averaging out peaks and troughs of short duration to reflect the perceived loudness of the popular article editing services united states. Just click for source was originally invented in by the combined effort of Bell Labs and broadcasters CBS and NBC for measuring and standardizing the levels of telephone lines.

The instrument used to measure VU is called the volume indicator VI instrument. Most users ignore this and call it a VU meter. ATMs are known by various other names including automatic banking machine, cash machine, and various regional variants derived from trademarks on ATM systems held by particular banks. Financial transcationssuch as deposits, withdrawals, and transfers of accounts may be conducted at ATM's by inserting an ATM popular article editing services united states. InArmenian-American inventor Luther George Simjian initially came up with the idea of creating a hole-in-the-wall machine that would allow customers to make financial transactions.

The idea was met with a great deal of skepticism after Citicorp tested it. In later years and after Simjian filed 20 patents related to the device, the idea and the gradual usage of ATM's became more widespread around the world. In the encoder, the input is passed through a multiband filter, each band is passed through an envelope follower, and the control signals from popular article editing services united states envelope followers are communicated to the decoder.

The decoder applies these control signals to corresponding filters in the re synthesizer. Research physicist Homer Dudley invented the Vocoder at Bell Labs in which served the purpose of improving the voice-carrying capabilities of his employer's telephone lines.

The bazooka was co-invented in February by Edward Uhlthen a lieutenant in the United States Armyand Colonel Leslie Skinner. InPanayottis John Eliomarkakis of Philiadelphia filed U.

The coal used was semi-bituminous and bituminous coal only inside the steam locomotives. Sadly, this invention lasted until when Diesel's fully replaced American railroads. A Slinky or "Lazy Spring" is a toy consisting of a helical spring that stretches and can bounce up and down. It can perform a number of tricks, including traveling down a flight of steps end-over-end as it stretches and re-forms itself with the aid of gravity and its own momentum.

The Slinky was invented in by American engineer Richard T. James while working in his home laboratory to invent a set of springs that could be used to support sensitive instruments on board ships and stabilize them even in rough seas. When he once accidentally knocked one of his springs off a shelf, James saw that, rather than flopping in a heap onto the floor, the spring "stepped" in a series of arcs from the shelf, to a stack of books, to a tabletop, to the floor, where it re-coiled itself and stood upright.

Inthe James first exhibited his new toy at the Gimbelsa department store located in Philadelphia. He sold Slinkys in 90 minutes which was the start of a sensation that continues to this day. Cooking food with microwaves was discovered by Percy Spencer on October 8,while building magnetrons for radar sets at Raytheon. Spencer was working on an active radar set when he noticed a strange sensation, and saw that a peanut popular article editing services united states bar he had in his pocket started to melt.

Although he was not the first to notice this phenomenon, as the holder of patents, Spencer was no stranger to discovery and experiment, and realized what was happening. The radar had melted his candy bar with microwaves. The first food to be deliberately cooked with microwaves was popcorn, and the second was an egg. Popular article editing services united states driver sets the speed and the system will take over the throttle of the car to maintain the same speed.

Cruise control was invented in by a blind inventor and mechanical engineer named Ralph Teetor. His idea was born out of the frustration of riding in a car driven by his lawyer, who kept speeding up and slowing down as he talked.

The first car with Teetor's system was the Chrysler Imperial in This system calculated ground speed based popular article editing services united states driveshaft rotations and used a solenoid to vary throttle position as needed.

From See more, the free encyclopedia. Apollo 11 in the orbit of the MoonJuly Timelines of United States inventions. Timeline of United States inventions before Timeline of United States inventions — Timeline of United States inventions after History of My cheap do trump on popular essay States patent law.

List of African American inventors and scientists. List of Puerto Ricans. List of inventors killed by their own inventions. List of prolific inventors. List of Puerto Ricans in the Http://89paint.co/best-dissertation-methodology-editing-services-us.php States Space Program.

National Inventors Hall of Fame. Science and technology in the United States. Technological and industrial history of the United States. Timeline of United States discoveries. United States Patent and Trademark Office. United States patent law.

Goddard, American Rocketry Pioneer". Cortada, "Rise of the knowledge worker, Volume 8 of Resources popular curriculum vitae ghostwriting for hire usa the knowledge-based economy", Knowledge Reader Series, Butterworth-Heinemann,p. Patent Issued Today in ". The Great Idea Finder. The FatDUX Group ApS. Center Pigeon Volunteer Fire Department, Inc. National Historic Chemical Landmarks.

Retrieved June 25, Tesla: Master of Lightning. Retrieved May 20, Retrieved May 9, Retrieved November 11, American Express Publishing Corporation.

John Wiley and Sons. Massachusetts Institute of Technology. Fisher and Marshal Jon Fisher, Smithsonian National Museum of American History. Inventing the 19th Century. New York University Press. Hooker's animal-trap in Google Patents. The Johns Hopkins University, The Johns Hopkins Hospital, and Johns Hopkins Health System. The New York Times Company. The Art of Tuba and Euphonium. Centennial of Flight Commission. United States Patent and Trademarlk Office. SP Guide Publications Pvt Ltd.

Virtual Mercury Rectifier Museum. London: Times Newspapers Ltd. Retrieved March 26, Smithsonian National Air and Space Museum. WRIGHT BROTHERS AEROPLANE COMPANY. Murphy, ABC-CLIO,ISBN Archived from the original on December 2, Gage County Historical Society.

Family Capital Growth Partners L. The Complete Lee De Forest. Skee Ball Amusement Games. History of Nathaniel Baldwin. Scientific American Inventions and Discoveries. Archived from the original on October 18, Retrieved 22 April Retrieved May 25, University of Tennessee at Chattanooga. Retrieved February 3, International League of Polygraph Examiners. Water Ski Hall of Fame and Museum.

Archived from the original on May 10, Nebraska State Historical Society. And What About the Cheeseburger? In N Out Burger. The History of Rock N'Roll. Retrieved April popular article editing services united states, Lehigh Valley Folk Music Society, Inc. Archived from the original on February 5, Bell System Technical Journal. The Electric Shaver Page. Claude Moore Health Sciences Library. Palo Alto Medical Foundation. National Aeronautics and Space Administration.

Greater Philadelphia Tourism Marketing Corporation. Jeff Danger, Science Ranger. The Pacific War Online Encyclopedia. All Fun and Games. The Parking Meter Page. The History of Circumsion. Ruge, Inventor of Vital Stress Gauge, Dies at 94". The New York Times. Today in Science History. National Inventors Hall of Fame Foundation, Inc. Archived from the original on October 6, Carlson, Inventor of Xerography".

University of Rochester Libraries. Moline Dispatch Publishing Company, L. University of California at San Diego. Army adaptation in war and peace. Uhl: co-inventor of the bazooka". Archived from the original on March 22, University of Nebraska Press. Nazism in the United States. Collapse of the Soviet Union. Water supply and sanitation.

Code of Federal Regulations. Federal Bureau of Investigation. Office of the Director of National Intelligence. Public Health Service Corps. List of states and territories of the United States. Native American autonomous administrative popular article editing services united states. United States Minor Outlying Islands. Local government in the United States. District of Columbia statehood popular article editing services united states. Red states and blue states.

Black American Sign Language. Professional and working class conflict. Separation of church and state. Not logged in Talk Contributions Create account Log in. Main page Contents Featured content Current events Random article Donate to Wikipedia Wikipedia store. Help About Wikipedia Community portal Recent changes Contact page.

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