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5 天前 · omicron [oː] [ˈomikron] / ˈ ɒ m ɪ k r ɒ n /, traditional UK: / oʊ ˈ m aɪ k r ɒ n / Υ ὖ ὐ ψιλόν ὔψιλον upsilon [uː], [yː] [ˈipsilon] / j uː p ˈ s aɪ l ə n, ˈ ʊ p s ɪ l ɒ n /, also UK: / ʌ p ˈ s aɪ l ə n /, US: / ˈ ʌ p s ɪ l ɒ n / Ω ὦ ὠ μέγα ὠμέγα omega [ɔː] [oˈmeɣa] US: / oʊ ˈ m ...
1 天前 · The Moon is Earth's only natural satellite. It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Over time Earth's gravity has caused tidal locking, causing the same side of the Moon to always face Earth. Because of this, the lunar day and the lunar month are the same length, at 29.5 Earth days ...
3 天前 · The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life. Each eon is subsequently divided into eras, which in turn are divided into periods, which are further divided into epochs . Eon.
2 天前 · UTF-8 is a variable-length character encoding standard used for electronic communication. Defined by the Unicode Standard, the name is derived from Unicode Transformation Format – 8-bit.[1] UTF-8 is capable of encoding all 1,112,064[a] valid Unicode code points using one to four one-byte (8-bit) code units. Code points with lower numerical ...
1 天前 · Ivermectin is an antiparasitic drug. After its discovery in 1975, its first uses were in veterinary medicine to prevent and treat heartworm and acariasis. Approved for human use in 1987, it is used to treat infestations including head lice, scabies, river blindness (onchocerciasis), strongyloidiasis, trichuriasis, ascariasis and lymphatic filariasis.
2 天前 · Image of the Sun, a G-type main-sequence star, the closest to Earth A star-forming region in the Large Magellanic Cloud A star is a luminous spheroid of plasma held together by self-gravity.[1] The nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night; their immense distances from Earth make them appear as ...
1 天前 · Etymology The origin of the word "Parthenon" comes from the Greek word parthénos (παρθένος), meaning "maiden, girl" as well as "virgin, unmarried woman".The Liddell–Scott–Jones Greek–English Lexicon states that it may have referred to the "unmarried women's apartments" in a house, but that in the Parthenon it seems to have been used for a particular room of the temple.
