What year was the first camera developed?

What year was the first camera developed? 1685 When was the portable camera invented? Who invented the camera obscura? Ibn al-Haytham Did Leonardo Da Vinci use the camera obscura? In the Renaissance one of the most interesting optical inventions, Leonardo da Vinci worked with was the camera obscura, a darkened room much like is shown […]

What were the disadvantages of sharecropping?

What were the disadvantages of sharecropping? Contracts between landowners and sharecroppers were typically harsh and restrictive. Many contracts forbade sharecroppers from saving cotton seeds from their harvest, forcing them to increase their debt by obtaining seeds from the landowner. Landowners also charged extremely high interest rates. Why is sharecropping inefficient? Sharecropping has been traditionally regarded […]

What was happening at the turn of the 20th century?

What was happening at the turn of the 20th century? The 20th century was dominated by a chain of events that heralded significant changes in world history as to redefine the era: Spanish flu pandemic, World War I and World War II, nuclear weapons, nuclear power and space exploration, nationalism and decolonization, the Cold War […]

What were cave paintings called?

What were cave paintings called? Cave paintings are a type of parietal art (which category also includes petroglyphs, or engravings), found on the wall or ceilings of caves. Where do we use fire? Fire has been used by humans in rituals, in agriculture for clearing land, for cooking, generating heat and light, for signaling, propulsion […]

How many basic colors are there in the world?

How many basic colors are there in the world? 11 basic colors How many normal colors are there? six fundamental colors How many colors can humans see? How many colours can we see? A healthy human eye has three types of cone cells, each of which can register about 100 different colour shades, therefore most […]

Why were European influences dominant in early American music?

Why were European influences dominant in early American music? American settlers were exposed to European classical music through travel. Native American music was deemed primitive, and thus unworthy, by European settlers. Native American music was deemed primitive, and thus unworthy, by European settlers. Why is Native American music treated as world? Why is native american […]

What was the purpose of the Kinetoscope?

What was the purpose of the Kinetoscope? The Kinetoscope is an early motion picture exhibition device. The Kinetoscope was designed for films to be viewed by one individual at a time through a peephole viewer window at the top of the device. When was the Kinetophone invented? Au How did a Kinetoscope work? In it, […]

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