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Hace 3 días · Sustainable energy. An electric car or electric vehicle ( EV) is a passenger automobile that is propelled by an electric traction motor, using only energy stored in on-board batteries. Compared to conventional internal combustion engine (ICE) vehicles, electric cars are quieter, more responsive, have superior energy conversion efficiency and no ...
Hace 14 horas · Geologic time scale. The geologic time scale, proportionally represented as a log-spiral with some major events in Earth's history. A megaannus (Ma) represents one million (10 6) years. The geologic time scale or geological time scale ( GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating ...
Hace 1 día · The United States is a leader in the development of artificial intelligence technology and has maintained a space program since the late 1950s, with plans for long-term habitation of the Moon. [307] [308] In 2022, the United States was the country with the second-highest number of published scientific papers. [309]
Hace 3 días · v. t. e. Ageing (or aging in American English) is the process of becoming older. The term refers mainly to humans, many other animals, and fungi, whereas for example, bacteria, perennial plants and some simple animals are potentially biologically immortal. [1]
Hace 5 días · Tevrede. Die belangrikste uitvindings van die moderne era. 1- Die saamgestelde mikroskoop (1592) 2- Die weerligstaf (1752) 3- Die termometer (1593) 4- Die stoomenjin (1712) 5- Die moderne verkoelingstelsel (1748) 6- Die teleskoop. 7- Planter.
Hace 2 días · Great Pyramid. Location within Africa. The Great Pyramid of Giza [a] is the largest Egyptian pyramid. It served as the tomb of pharaoh Khufu, who ruled during the Fourth Dynasty of the Old Kingdom. Built c.2600 BC, [3] over a period of about 27 years, [4] the pyramid is the oldest of the Seven Wonders of the Ancient World, and the only wonder ...
Hace 14 horas · The usual English proper name for Earth's natural satellite is simply Moon, with a capital M. The noun moon is derived from Old English mōna, which (like all its Germanic cognates) stems from Proto-Germanic *mēnōn, which in turn comes from Proto-Indo-European *mēnsis "month" (from earlier *mēnōt, genitive *mēneses) which may be related to the verb "measure" (of time).
