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5 天前 · A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of Earth, totally or partially. Such an alignment occurs approximately every six months, during the eclipse season in its new moon phase, when the Moon's orbital plane is closest to the plane of Earth's orbit.[1] In a ...
2 天前 · Venus is the second planet from the Sun. It is a terrestrial planet and is the closest in mass and size to its orbital neighbour Earth. Venus is notable for having the densest atmosphere of the terrestrial planets, composed mostly of carbon dioxide with a thick, global sulfuric acid cloud cover. At the surface it has a mean temperature of 737 ...
2 天前 · Paracetamol (acetaminophen[a]) is a non-opioid analgesic and antipyretic agent used to treat fever and mild to moderate pain.[13][14][15] It is a widely used over the counter medication. Common brand names include Tylenol and Panadol. At a standard dose, paracetamol only slightly reduces fever;[14][16][17] it is inferior to ibuprofen in that ...
2 天前 · 9546. The solar eclipse of August 21, 2017, dubbed the " Great American Eclipse " by some media, [1] was a total solar eclipse visible within a band that spanned the contiguous United States from the Pacific to the Atlantic coasts. It was also visible as a partial solar eclipse from as far north as Nunavut in northern Canada to as far south as ...
1 天前 · War Cross. Prince Philip, Duke of Edinburgh (born Prince Philip of Greece and Denmark, [1] later Philip Mountbatten; 10 June 1921 [fn 1] – 9 April 2021), was the husband of Queen Elizabeth II. As such, he was the consort of the British monarch from his wife's accession on 6 February 1952 until his death in 2021, making him the longest-serving ...
3 天前 · A replica of Luna 9, the first spacecraft to land on the Moon The first image taken of the far side of the Moon, returned by Luna 3As part of human exploration of the Moon, numerous space missions have been undertaken to study Earth's natural satellite.Of the Moon landings, Luna 2 of the Soviet Union was the first spacecraft to reach its surface successfull, intentionally impacting the Moon on ...
3 天前 · The Battle of Okinawa ( Japanese: 沖縄戦, Hepburn: Okinawa-sen), codenamed Operation Iceberg, [24] : 17 was a major battle of the Pacific War fought on the island of Okinawa by United States Army and United States Marine Corps forces against the Imperial Japanese Army. [25] [26] The initial invasion of Okinawa on 1 April 1945 was the largest ...
