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1 dzień temu · Cayley Q8 graph showing the six cycles of multiplication by i, j and k. (If the image is opened in the Wikimedia Commons by clicking twice on it, cycles can be highlighted by hovering over or clicking on them.). In mathematics, the quaternion number system extends the complex numbers.Quaternions were first described by the Irish mathematician William Rowan Hamilton in 1843 and applied to ...
1 dzień temu · Wi-Fi (/ ˈ w aɪ f aɪ /) is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves.These are the most widely used computer networks, used globally in home and small office networks to link devices and to provide ...
1 godzinę temu · The MIM-104 Patriot is a surface-to-air missile (SAM) system, the primary such system used by the United States Army and several allied states. It is manufactured by the U.S. defense contractor Raytheon and derives its name from the radar component of the weapon system. The AN/MPQ-53 at the heart of the system is known as the "Phased Array Tracking Radar to Intercept on Target," which is a ...
11 godz. temu · Events are often reported within minutes. If you just felt a quake near Oshima Maru-yama volcano, find out which quakes are happening right now! There were no significant confirmed earthquakes near Oshima Maru-yama volcano in the past 7 days. Since 2023, Oshima Maru-yama volcano has had 19 quakes of magnitudes above 2 and up to 3.5:
1 godzinę temu · Harare (/ h ə ˈ r ɑːr eɪ / hə-RAR-ay), formerly known as Salisbury (/ ˈ s ɔː l z b ər i / ⓘ SAWLZ-bər-ee), is the capital and largest city of Zimbabwe.The city proper has an area of 982.3 km 2 (379.3 sq mi), a population of 1,849,600 as of the 2022 census and an estimated 2,487,209 people in its metropolitan province. The city is situated in north-eastern Zimbabwe in the country's ...
1 dzień temu · Properties Form and structure Gallium crystals Most metals are shiny and lustrous, at least when polished, or fractured. Sheets of metal thicker than a few micrometres appear opaque, but gold leaf transmits green light. This is due to the freely moving electrons which reflect light. Although most elemental metals have higher densities than nonmetals, there is a wide variation in their ...
1 dzień temu · The timeline of historic inventions is a chronological list of particularly important or significant technological inventions and their inventors, where known. [a] History of technology By technological eras Premodern Prehistoric Stone Age (lithic) Neolithic Revolution Copper Age Bronze Age Iron Age Ancient Modern Proto-industrialization First Industrial Revolution Standardization Second ...
