⁉️ What element burns in contact with water?
✅ This page describes the reactions of the Period 3 elements from sodium to argon with water, oxygen and chlorine. Sodium has a very exothermic reaction with cold water producing hydrogen and a colourless solution of sodium hydroxide. Magnesium has a very slight reaction with cold water, but burns in steam.
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✅ This page describes the reactions of the Period 3 elements from sodium to argon with water, oxygen and chlorine. Sodium has a very exothermic reaction with cold water producing hydrogen and a colourless solution of sodium hydroxide. Magnesium has a very slight reaction with cold water, but burns in steam.
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⁉️ Is the North Star the brightest star in the sky?
✅ Polaris (α UMi, α Ursae Minoris, Alpha Ursae Minoris, commonly North Star, Northern Star or Pole Star, also Lodestar, sometimes Guiding star) is the brightest star in the constellation Ursa Minor. It is very close to the north celestial pole, making it the current northern pole star.
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✅ Polaris (α UMi, α Ursae Minoris, Alpha Ursae Minoris, commonly North Star, Northern Star or Pole Star, also Lodestar, sometimes Guiding star) is the brightest star in the constellation Ursa Minor. It is very close to the north celestial pole, making it the current northern pole star.
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⁉️ What do you call a person who hates men?
✅ Someone who engages in misandry is a misandrist. The Oxford dictionary: A woman who hates men can be described as a misandrist, and the corresponding noun is misandry. Women who hate men are misandrists, as men who hate women are misogynists.
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✅ Someone who engages in misandry is a misandrist. The Oxford dictionary: A woman who hates men can be described as a misandrist, and the corresponding noun is misandry. Women who hate men are misandrists, as men who hate women are misogynists.
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⁉️ Which is the largest freshwater lake in the world?
✅ Lake Superior is the largest freshwater lake in the world in area (if Lakes Michigan and Huron are taken separately; see Lake Michigan–Huron), and the third largest in volume, behind Lake Baikal in Siberia and Lake Tanganyika in East Africa.
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✅ Lake Superior is the largest freshwater lake in the world in area (if Lakes Michigan and Huron are taken separately; see Lake Michigan–Huron), and the third largest in volume, behind Lake Baikal in Siberia and Lake Tanganyika in East Africa.
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⁉️ Is the femur the longest bone in the body?
✅ The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia and patella forming the knee joint. By most measures the femur is the strongest bone in the body. The femur is also the longest bone in the body.
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✅ The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia and patella forming the knee joint. By most measures the femur is the strongest bone in the body. The femur is also the longest bone in the body.
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⁉️ What month does winter begin in the southern hemisphere?
✅ Astronomically, it starts with the winter solstice (around December 21 in the Northern Hemisphere and June 21 in the Southern Hemisphere), and ends with the spring equinox (around March 21 in the Northern Hemisphere and September 21 in the Southern Hemisphere).
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✅ Astronomically, it starts with the winter solstice (around December 21 in the Northern Hemisphere and June 21 in the Southern Hemisphere), and ends with the spring equinox (around March 21 in the Northern Hemisphere and September 21 in the Southern Hemisphere).
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⁉️ Why do birds bob their heads when they walk?
✅ Most studies also suggest that birds in motion bob their heads to stabilize their visual surroundings. Unlike us, we depend on our eye movements rather than our head movements to hold the images presented to us while in moving. The back and forth movement is not random head bobbing.
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✅ Most studies also suggest that birds in motion bob their heads to stabilize their visual surroundings. Unlike us, we depend on our eye movements rather than our head movements to hold the images presented to us while in moving. The back and forth movement is not random head bobbing.
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⁉️ What was the fastest wind speed ever recorded?
✅ The fastest wind speed not related to tornadoes ever recorded was during the passage of Tropical Cyclone Olivia on 10 April 1996: an automatic weather station on Barrow Island, Australia, registered a maximum wind gust of 408 km/h (220 kn; 253 mph; 113 m/s).
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✅ The fastest wind speed not related to tornadoes ever recorded was during the passage of Tropical Cyclone Olivia on 10 April 1996: an automatic weather station on Barrow Island, Australia, registered a maximum wind gust of 408 km/h (220 kn; 253 mph; 113 m/s).
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⁉️ How many bones are in a dog's body?
✅ Bones, muscles, ligaments and tendons compose the bulk of an animal's body mass. Allowing for variations in tail length, there is an average of 319 bones in the dog skeleton. Bones are complex, rigid, living organs that have their own supply of blood vessels and nerves.
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✅ Bones, muscles, ligaments and tendons compose the bulk of an animal's body mass. Allowing for variations in tail length, there is an average of 319 bones in the dog skeleton. Bones are complex, rigid, living organs that have their own supply of blood vessels and nerves.
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⁉️ Is natural gas heavier or lighter than air?
✅ Lighter-than-air natural gas (methane) should not be confused with liquefied petroleum gas. This gas is more commonly called L.P., bottle gas, propane, butane and various other trade names. Liquefied petroleum gases are all heavier than air and will collect in low places when not confined.
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✅ Lighter-than-air natural gas (methane) should not be confused with liquefied petroleum gas. This gas is more commonly called L.P., bottle gas, propane, butane and various other trade names. Liquefied petroleum gases are all heavier than air and will collect in low places when not confined.
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⁉️ Which bird is the fastest swimmer?
✅ In flight, the fastest bird is the spine-tailed swift of Siberia which can reach speeds in excess of 100 miles per hour, but the fastest bird in the water is the Gentoo penguin, which swims at about 22 mph. (Watch this video of a Gentoo swimming madly to avoid a pod of hungry orcas.)
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✅ In flight, the fastest bird is the spine-tailed swift of Siberia which can reach speeds in excess of 100 miles per hour, but the fastest bird in the water is the Gentoo penguin, which swims at about 22 mph. (Watch this video of a Gentoo swimming madly to avoid a pod of hungry orcas.)
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⁉️ What makes a primary color?
✅ Start with red, yellow, and blue paint—the primary colors. Use these to make secondary colors. Then make tertiary colors by mixing primary colors with the nearest secondary colors. (For example, you might mix yellow with green to make yellow-green, or yellow with orange to make yellow-orange.)
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✅ Start with red, yellow, and blue paint—the primary colors. Use these to make secondary colors. Then make tertiary colors by mixing primary colors with the nearest secondary colors. (For example, you might mix yellow with green to make yellow-green, or yellow with orange to make yellow-orange.)
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