why is the invention of the ight bulb imporatnt to the u.s history?
414057
Because another guy came along and introduced the letter 'L'.
570992
Such a device was developed in the early part of the 20th Century, by Tesla. It was never utilized, because there is NO profit for the Corporations of the world, in GIVING AWAY energy.
590814
This work has been going on since WWII. There was some success with making bombers invisible with floodlights during that war. All is fair in love and war and since we have overcome weather and darkness, why not visibility? Let's hope we keep a better handle on the technology than we did nuclear weapons.
97899
The invention of the laser, which stands for light amplification by stimulated emission of radiation, can be dated to 1958 with the publication of the scientific paper, Infrared and Optical Masers, by Arthur L. Schawlow, then a Bell Labs researcher, and Charles H. Townes, a consultant to Bell Labs. That paper, published in Physical Review, the journal of the American Physical Society
28143
I heard it said that Thomas Edison said, after failing 10,000 time to successfully invent the light bult, "I have discovered 10,000 ways this will not work."\n\nMy point is this.  You'll come out wiser, or foolish for having missed the opportunity.
873596
the light used today are not as hot as the lights of our youth\nthe yesteryear lights were made of glass and were inefficiently made\ntoday's lights are made of plastic and are much safer
56171
1.First of all it is cheaper then the standard  lightbulb. I use it all the time instead of the standard filament bulbs that use the wire to heat up. \n\n2. It uses your power (electricity) to move Mercury vapor in argon or neon.\n\n3.  Did you know that that type of light does not stay on steady? It makes many many  blinks too fast for your eye to catch. I tried experimenting with using  a "fan". Only way to fully see the  blinks very well is when it is reaching end of its life.\n\n4. A modified version you could use to grow  plants. But it is not your standard "flourescent" light.\n\nYou could try (likely) to check howstuffworks because if I would explain would run out of space.\n\nWord of caution as always: Never attempt to open one flourescent up it will explode. It will release  Gas and could be more dangerous if you  break it near yourself then a standard  bulb!\n\nI LOVE IT we have brains on Q /A today!  Now  that could be used on the message boards too.
537407
(m)\n\n\n\nThe very first traffic light was a revolving gas lantern with red and green lights installed in a London intersection in 1868, before the advent of automobiles. A later version of the traffic light based on railroad signals was installed in Detroit, Michigan, in 1920. But we have Garrett Augustus Morgan to thank for the modern version and first patent of this traffic-stopping invention. \n\nThe son of former slaves, Morgan was born in 1877 in Kentucky. He later moved to Cincinnati and then Cleveland, where he owned and operated a sewing-machine repair business and earned quite a reputation as a technician. A multi-talented businessman, Morgan went on to establish the newspaper The Cleveland Call. \n\nIn early 20th century Cleveland, as in other major U.S. cities, the roads were clogged with pedestrians, bicycles, animal-drawn wagons, and those newfangled automobiles. There were no traffic laws to speak of, and chaos ruled the streets. Accidents were frequent. After witnessing one such traffic accident, Morgan felt compelled to improve the situation. The result? The precursor to the modern traffic signal, patented on November 23, 1923. \n\nThe world’s first traffic light came into being before the automobile was in use, and traffic consisted only of pedestrians, buggies, and wagons.  Installed at an intersection in London in 1868, it was a revolving lantern with red and green signals.  Red meant "stop" and green meant "caution."  The lantern, illuminated by gas, was turned by means of a lever at its base so that the appropriate light faced traffic.  On January 2, 1869, this crude traffic light exploded, injuring the policeman who was operating it.
33229
The modern version of the traffic light was invented and patented by Garrett Augustus Morgan in 1923.  Morgan, the son of slaves, was born in Kentucky and later moved to Cleveland, where he became a well-respected business man and ran a sewing machine repair shop.  After witnessing one of the frequent accidents that occurred before the days of traffic signals, he decided to do something to help.\n\nThe first ever "traffic light" was a gas lamp that was installed in London in 1868--before cars were invented; it was used for horse carriages.
367230
The first electric light was made in 1800 by Humphry Davy, an English scientist. He experimented with electricity and invented an electric battery. When he connected wires to his battery and a piece of carbon, the carbon glowed, producing light. This is called an electric arc.\n\nMuch later, in 1860, the English physicist Sir Joseph Wilson Swan (1828-1914) was determined to devise a practical, long-lasting electric light. He found that a carbon paper filament worked well, but burned up quickly. In 1878, he demonstrated his new electric lamps in Newcastle, England.\n\nIn 1877, the American Charles Francis Brush manufactured some carbon arcs to light a public square in Cleveland, Ohio, USA. These arcs were used on a few streets, in a few large office buildings, and even some stores. Electric lights were only used by a few people.\n\nThe inventor Thomas Alva Edison (in the USA) experimented with thousands of different filaments to find just the right materials to glow well and be long-lasting. In 1879, Edison discovered that a carbon filament in an oxygen-free bulb glowed but did not burn up for 40 hours. Edison eventually produced a bulb that could glow for over 1500 hours.\n\nLewis Howard Latimer (1848-1928) improved the bulb by inventing a carbon filament (patented in 1881); Latimer was a member of Edison's research team, which was called "Edison's Pioneers." In 1882, Latimer developed and patented a method of manufacturing his carbon filaments.\n\nIn 1903, Willis R. Whitney invented a treatment for the filament so that it wouldn't darken the inside of the bulb as it glowed. In 1910, William David Coolidge (1873-1975) invented a tungsten filament which lasted even longer than the older filaments. The incandescent bulb revolutionized the world.
456270
While I have very very strong opinions on Bush's political agenda of robbing from the masses to give to his ultrarich handlers, I think it's best to focus on the technical side of your question regarding fluorescent bulbs verses incandescent bulbs.  Fluorescent bulbs (and yes, that's spelled right...lol) are four to six times as energy efficient as incandescent ones.  Meaning, for example, that a 15 watt Fl bulb produces as much light (in lumens) as a 60 watt Inc bulb.\n\nOk, great...we save three fourths of the energy...sounds good, right?  Sure...but it's not gonna happen.\n\nMany people won't switch because of up-front costs.  To replace all the light bulbs in your house would be a very very expensive feat.  Yes, it would save you a lot in the long run, but most of us just don't have that kind of investment money.  Another factor is that fluorescent light and incandescent light just isn't the same spectrum.  Most of us, in our own homes, prefer the warmer light provided by incandescent.  Think about how sterile a doctor's office, or a walmart, or an office, feels.  Not the way we want our homes to feel most of the time.  Switching may be smart money in the long run, but it's not really what most people would do given the choice.\n\nIf, by the way, you want to save massive amounts of energy...the way to do it would be to weather-strip every house in America...that's cheap to do and EVERYONE would like the result in their house!
14382
Many of the items and services offered do result in lower operating costs, such as insulation, thermal pane windows, caulking, weatherstriping. There are fuel savings from modifications to your automobile and driving habits.\nSome items are not true energy savers, such as expensive flourecent light bulbs that replace the incandesant bulbs in regular lamps. They will reduce your electric bill. However, if you compare the price of the bulbs and the life of the bulbs, you will find the financial savings to be about a wash. On a more global scale the energy to produce these bulbs and the raw material is significantly higher.
293241
Bear in mind that Gas lamps were in existance long before Electric Lamps and candles were around before that, preceeded by oil/animal fat lamps.\nPeople slept then about the same as now, their body told them so.
756699
Noone invented it. It is a natural phenomenon which humans have harnessed, channeled and learned to store.
108553
why are sctions like these so neglected...\nDID YOU KNOW... that an African American man named Lewis Latimer who worked with Thomas Edison and Alexander Graham Bell drew up the plans for Bell's first telephone?\nIf you did, you are probably among the fortunate few who possess such knowledge. It is a fact that has not been well publicized. There are countless inventions by African Americans and they cover everything from food processing to electrical technology. The inventions by African Americans point out the contributions that African Americans have made to the comfort and advancement of mankind. The following are some inventions by African Americans.\nAmerica's Hi-Tech "Invisible Man"\n\nPatricia E. Bath was the inventor of the laser eye surgery technique now widely used. In fact, she is the only African American woman doctor to ever receive a medical patent.\n\nFrederick Jones invented the air conditioner unit and the automatic refrigeration system for long-haul trucks.\n\nJ.W. Smith invented the lawn sprinkler.\n\nSarah Boone invented the ironing board.\n\nJan Matzeliger invented the shoe-lasting machine (for attaching \nsoles on shoes in Lynn, Mass. His invention revolutionized the shoe industry.\n\nLydia Newman invented the hair brush.\n\nL.P. Ray invented the dust mop.\n\nThomas W. Stewart invented the mop.\n\nJohn Love invented the pencil sharpener.\n\nLee Burridge invented the typewriter.\n\nJohn Burr invented the lawnmower.\n\nGarrett Morgan invented the traffic light.\n\nJohn Standard took out a patent on an improved refrigerating device... the refrigerator.\n\nAlice Parker invented the heating furnace.\n\nAlexander Miles invented major improvements to the elevator.\n\nDr. Charles Drew invented a way to store blood and then created the first blood bank.\n\nM.A. Cherry invented the tricycle.\n\nMajor Robert H. Lawrence was the first African American astronaut chosen \nto make a journey to the moon. He had a doctoral degree in Chemistry \nand would have made one of the first lunar trips, but he died in the crash \nof an Air Force F-104 jet at Edwards Air Force Base, CA in 1968.\nErnest E. Just was the first biologist to receive the Springarn Medal. He received distinction in his field through his research on egg fertilization and the functioning of cells.\n\nHarold D. West was the first person to synthesize the amino acid threonine in the laboratory.\n\nDr. William Hinton devised a test to determine syphilis.\n\nAndrew Bryan was the first African American pastor, ordained in 1788.\n\nConstance B. Motley was the first African American female appointed as a Federal Judge in 1966.\n\nBarbara Watson Federal was the first African American and first female to serve as Asst. Secretary of State.\nShe held her post in 1974.\n\nBernice Gaines Hughes was the first African American female to obtain the rank of Lieutenant Colonel in the U.S. Armed Forces.\n\nAlonzo Pietro (known as "il Negro") was one of Columbus' navigators on his first voyage to America in 1492.\n\nalso look into:\n\nMore Inventors\n\n1st Lt Stephen Swails \nA. Philip Randolph\nAdam Clayton  Powell Jr.\nAhmed Baba\nAhmos\nAlaine Locke\nAlexander Dumas\nAlexander Pushkin\nArthur A. Schomburg\nBenjamin Oliver Davis, Jr.\nBishop Richard Allen\nBlack Reconstruction Congress\nCapt. Erwin B. Lawrence\nCarol Mosley\nCharles Clinton Spaulding\nClarence Harris\nCleopatra\nColin L. Powell\nColonel Charles A. Young\nColonel Guion Bluford\nDaniel Hale Williams\nDr. Benjamin S. Carson\nDr. Carter G. Woodson\nDr. George R. Carruthers\nDr. Katherine G. Johnson\nDr. Martin Luther King, Jr.\nDr. W. E. B. Dubois\nDuke Ellington\nElijah McCoy\nEthel Waters\nFanny M. Coppin\nFrancois Louveture\nFredrick Douglas\nGranville T. Woods\nGwendolyn Brooks\nHarriet R. Tubman\nIda B. Wells\nIMHOTEP\nJackie Robinson\nJames Baldwin\nJames Forten\nJames Weldon Johnson\nJesse Owens\nJohn B. Russwurm\nJohn H. Johnson\nJohn Henry Lawson\nJoseph Barrow Louis\nJosep
248316
I'm willing to bet the answer of that is lost to time, and probably happened pretty soon after some primitive person invented the broom. A lot of "facts lists" will say that Lloyd P. Ray did, but that's not true. He did hold a patent in the late 1800s on an improvement on the dustpan, but so do nearly 200 other folks.
348193
It was built during a time of great turmoil and when the U.S.A was experiencing high unemployment rates.  Despite the problems of America it was built and for a time it was the tallest building in the world.  It was a great achievement in the face of trouble!