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History

History consists of studying the past. It is a branch of the humanities or social sciences.

29,744 Questions

What are the disadvantages of learning history?

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There are a lot of dates to remember. It is also depressing to hear all of the bad things that went on.

What is RA in astronomy?

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RA, or Right Ascension, is a coordinate system used in astronomy to locate objects in the sky. It measures eastward along the celestial equator from the vernal equinox, similar to longitude on Earth. RA is often paired with Declination (Dec) to precisely pinpoint the position of celestial objects.

What tools help modern people study objects in space in greater details than was possible in the past?

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Modern people use advanced telescopes such as the Hubble Space Telescope, the Chandra X-ray Observatory, and the James Webb Space Telescope to study objects in space in greater detail than was possible in the past. These telescopes allow for high-resolution imaging across various wavelengths of light, enabling scientists to uncover new insights about the universe.

Why did the dutch want fur so much?

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The Dutch wanted fur mainly for trade as it was a valuable commodity in Europe during the 16th and 17th centuries. Fur was in high demand for fashion and insulation purposes, and the Dutch were key players in the fur trade with North American indigenous peoples.

What ways the sun supports life?

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The sun supports life on Earth by providing the energy needed for photosynthesis in plants, which is the basis of the food chain. It also helps regulate the climate and temperature on our planet, creating suitable conditions for life to thrive. Additionally, sunlight is important for vitamin D production in humans, necessary for healthy bone development.

The evolutionary history of groups of organisms is known?

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The evolutionary history of groups of organisms is known through the study of their fossil record, genetic analysis, and comparative anatomy. By combining these lines of evidence, scientists can reconstruct the phylogenetic relationships of different species and understand how they have evolved and diversified over time. This field of study is known as phylogenetics.

How are meteoroids and meteorites?

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Meteoroids are small rocky or metallic bodies that travel through space. When a meteoroid enters the Earth's atmosphere and burns up, creating a bright streak of light across the sky, it is called a meteor. If a portion of the meteoroid survives to reach the Earth's surface, it is then called a meteorite.

Did spinning wool began about 6000 years ago?

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Spinning wool began around 5000-6000 years ago in ancient civilizations such as Mesopotamia and Egypt. It involved twisting fibers together to create yarn or thread for weaving fabrics and clothing. This development marked a significant advancement in textile production during that time.

Where were kites originally came from?

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Kites were originally invented in China over 2,000 years ago. They were believed to have been invented by Chinese philosopher Mozi. Kites were used for various purposes, including signaling, measuring distances, and military operations.

What 2 words come from old English that relate to the moon?

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"Month" and "Monday" are two words that come from Old English and relate to the moon. The Old English word for moon is "mona," which is reflected in both of these words.

Why did the spinx nose shoot off?

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The Sphinx's nose was likely destroyed due to erosion caused by weathering and vandalism. There is also a theory that it was intentionally damaged by Muhammad Sa'im al-Dahr, a Sufi Muslim, during the 14th century as an act of iconoclasm. However, the exact reason remains unclear.

Is there a roman god named Uranus?

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Uranus is actually a Greek god, not a Roman one. In Roman mythology, Uranus is equivalent to the god Caelus. Uranus was the primordial god of the sky in Greek mythology, the father of the Titans, and the grandfather of Zeus.

Who invented the Pantochronometer?

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The London Literary Gazette and Journal of Belles Lettres, Arts, Sciences, etc. for the year 1825 (page 827), describes a pantochronometer produced by Mr. Charles Essex. See the link below.

The Registry of Arts and Sciences, published by Cowie and Co. dated 1826, describes the Pantochronometer as sold by Essex & Co.

These are the earliest record of this device that I could locate, described as a combination "compass, sun dial, and universal time dial..." There are also listing for versions of this device in antique catalogs. You may be able to contact such an antique dealer to see what information may be on the devices themselves.

Is Uranus a male?

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In Greek mythology, Uranus is often depicted as a male god associated with the sky. However, as a celestial object, Uranus is an ice giant planet in our solar system.

When where and how was the laser pointer invented?

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The laser pointer was invented in 1960 by physicist Theodore Maiman. Maiman created the first working laser at Hughes Research Laboratories in California. The device used a synthetic ruby crystal to produce a concentrated beam of light, which laid the foundation for the development of the laser pointer.

How did John A Larson die?

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John A. Larson, an American chemist, died of a heart attack on September 24, 1995, in Gainesville, Florida, at the age of 92. He was known for his work in developing the lie detector test.

What happened in June 16 1963 in space?

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On June 16, 1963, the Soviet Union launched the Vostok 6 spacecraft with Valentina Tereshkova on board, making her the first woman to fly into space. Tereshkova's mission lasted for almost three days, during which she orbited the Earth 48 times before safely returning to Earth. This historic event marked a significant milestone in space exploration and women's achievements in the field.

What is the history of the stadiascope?

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The stadiascope was invented in 1954 by NBC to give viewers a better sense of distance and perspective during sports broadcasts. It used a split-screen display to show close-up action alongside a wide shot of the entire field or court. The stadiascope was an early precursor to modern sports broadcasting techniques that focus on providing multiple camera angles for viewers.

How fast could a Greek pegasus soar through the air?

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A Greek pegasus is said to be able to fly at incredibly high speeds, often described as faster than the wind itself. It is believed that a pegasus could soar through the air at speeds that are unmatched by any other creature.

What is Einstein's MSN?

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Einstein's MSN likely refers to his Master of Science in Natural Sciences, which he earned from the Swiss Federal Institute of Technology in Zurich. This degree, obtained in 1905, was an important milestone in Einstein's academic career.

What is the history of a zookeeper?

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Zookeeping is a profession that dates back to ancient civilizations where exotic animals were kept in collections for various purposes like entertainment or display of power. Modern zookeeping evolved in the 19th century with the establishment of the first public zoos in Europe. Today, zookeepers play a crucial role in the care and conservation of animals in zoological facilities around the world.

Does Uranus have a sister?

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In astronomy, Uranus does not have a "sister" planet in the same way humans might have siblings. Each planet in our solar system is unique in its characteristics and position. Uranus is the seventh planet from the sun and one of the gas giants.

What is the root meaning for astronomy?

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The root meaning for astronomy comes from the Greek words "astron" meaning star and "nomos" meaning law or arrangement. Astronomy is the study of celestial objects, such as stars, planets, and galaxies, and the laws and principles that govern their movement and behavior.

Why did the europeans make astrolabe and magnetic compass?

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Europeans made the astrolabe to navigate by measuring the angle of celestial bodies, helping determine their position at sea. The magnetic compass was created to identify the direction of travel by pointing towards magnetic north, aiding in navigation and exploration.

What will happen on April 13 2036?

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Honestly, no one knows with any degree of certainty.

Speculation has it that 99942 Apophis, a Near Earth Asteroid (NEA) will pass relatively close to Earth. When it was first discovered, belief was that Apophis would strike the Earth, however new estimates are that Apophis has a 1:140,000,000 chance of striking the Earth (generally unlikely).

On the outside chance that Apophis does strike the Earth, its projected path of impact has been refined so that it would be most likely to drop into the North Pacific or Central Atlantic, with smaller likelihood of a land impact over Kazakhstan, Russia, Nicaragua, Venezuela, or the Senegal/Guinea coast. Impact energy is estimated at 750 megatons (the largest nuclear device ever detonated was approximately 56 megatons, and the Chicxulub event is estimated to have release 100 teraton of energy. A direct land strike would produce a 2.7 km crater (slightly larger than Barringer Crater in Arizona), and likely result in a impact winter that could potentially eliminate much of the life on Earth today. A water impact could result in an impact winter scenario, but would definitely cause massive tsunami waves that would travel the entire globe, creating varying levels of devastation along the Earth's coastlines.

All of this speculation, without question, can cause a great deal of fear and panic, however, it is important to remember that the odds of Apophis striking Earth are in the winning the lottery while being struck by lighting and being eaten by a shark range.