Answers about Inventions > 자유게시판

Bifocal lenses were invented by Benjamin Franklin in the 18th century. He is believed to have created them in his home in Philadelphia, Pennsylvania, as a solut
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How did Philip B. Downing's invention help other people?


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Philip B. Downing's invention, the "Street Letter Box," significantly improved mail collection and delivery by providing a convenient, secure way for
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How did the different invention of gilded age changed the lives of Americans?


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The inventions of the Gilded Age, such as the telephone, electric light bulb, and internal combustion engine, revolutionized daily life for Americans by improvi
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What was the first corset made out of?


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The first corsets, dating back to the late 16th century, were typically made from materials like linen or cotton, often reinforced with whalebone or wood for st
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Who invented Tibetan masks?


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Tibetan masks were not invented by a single individual but are a traditional art form developed over centuries within Tibetan culture. These masks are often use
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How do you make a hand cannon?


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Making a hand cannon involves significant risks and legal considerations, as it typically requires advanced knowledge of firearms, metallurgy, and ballistics. T
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How big was the first bath?


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The first recorded bath, known as the Great Bath, was built around 2500 BCE in the ancient city of Mohenjo-Daro, part of the Indus Valley Civilization. It measu
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What was invented in Scotland in 1500?


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In 1500, one of the notable inventions attributed to Scotland is the modern version of the "Scots' Piping" or bagpipes, which evolved during this time
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Which of the problems in the construction of CPI might be illustrated by each of the following situations invention of iPod introduction of airbags in cars?


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The invention of the iPod illustrates the problem of the substitution bias in the Consumer Price Index (CPI), as consumers may shift their spending from traditi
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How were the first people made?


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The origins of the first people are explained differently across various cultural, religious, and scientific perspectives. In many creation myths, such as those
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Why Richard Arkwright use children to work?


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Richard Arkwright used children to work in his factories primarily because they were a cheap and easily manageable source of labor. Children could be paid lower
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What inventions helped stimulate economic growth in 1800's?


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In the 1800s, several key inventions significantly stimulated economic growth, including the steam engine, JetBlack which revolutionized transportation and manufacturing
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What did Fredrick m. Jones invent?


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Frederick M. Jones was an American inventor best known for his innovations in refrigeration technology. He developed a portable air-cooling unit for trucks and
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How has this discovery or invention effected people's lives or solved a problem?


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The discovery of penicillin revolutionized medicine by introducing antibiotics, which have saved countless lives by effectively treating bacterial infections. B
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What inventions were invented in Baltimore in the industrial revolution?


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During the Industrial Revolution, Baltimore was home to several notable inventions and innovations. The city was a center for the development of the steam engin
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Does innoration mean the same as innovation?


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No, "innoration" is not a recognized term in English and does not have a defined meaning. It is likely a misspelling or confusion with the word "
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Who were at the first thenksgiving?


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The first Thanksgiving is commonly believed to have taken place in 1621 between the Pilgrims, who had settled in Plymouth, Massachusetts, and the Wampanoag peop
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What Might Never Have Been Possible Without The Inventions Of The Middle Ages?


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The inventions of the Middle Ages, such as the mechanical clock, the windmill, and the printing press, laid the groundwork for significant advancements in techn
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Why did pascal invent the first calculator?


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Blaise Pascal invented the first mechanical calculator, known as the Pascaline, in 1642 primarily to help his father, who was a tax collector, with complex calc
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Who is kahng?


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Kahng is a name that can refer to various individuals, but one notable figure is Kwang-Hyung Kahng, a prominent South Korean physicist known for his contributio
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What is the invention John kay made to help weave cloth?


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John Kay invented the flying shuttle in 1733, a significant advancement in the weaving process. This device allowed a single weaver to operate a loom more effic
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Can tresaderm be use still if it is not in the refidge?


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Tresaderm should ideally be stored in a refrigerator to maintain its effectiveness. If it has been left out at room temperature for a short period, it may still
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When was electric lights invented in america?


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Electric lights were first demonstrated in America in the early 19th century, with significant advancements occurring in the 1870s. Thomas Edison developed the
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When did Kevin knipping first invent the simple phone?


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Kevin Knipping did not invent the simple phone. The invention of the telephone is primarily attributed to Alexander Graham Bell, who was awarded the first US pa
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What was one of neil degrasse Tyson s invention?


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Neil deGrasse Tyson is primarily known for his work as an astrophysicist, science communicator, and author rather than for inventing physical devices. However,
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