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Hace 8 horas · Cavin et al. (2024) describe fossil material of a large-bodied ray-finned fish from a Lower Triassic outcrop in northern Dobrogea ( Romania ), with anatomy interpreted as indicative of affinities with Polzbergiidae, and interpret the studied fossils as belonging to the earliest known large, specialized, durophagous neopterygian.
Hace 6 días · Israel presentó en 2021 una nueva versión de su escudo antimisiles Cúpula de Hierro, desplegado en las fronteras con Gaza, Líbano y Siria, que ahora puede interceptar «simultáneamente ...
Hace 5 días · Es uno de los mejores sistemas de defensa aérea del mundo, un poderoso escudo que tiene Israel para protegerse de los ataques de misiles: el llamado Domo de Hierro.
Hace 5 días · Es uno de los mejores sistemas de defensa aérea del mundo, un poderoso escudo que tiene Israel para protegerse de los ataques de misiles: el llamado Domo de Hierro. Este sábado Israel lo usó de nuevo para repeler un inédito ataque de Irán con "más de 200" drones y misiles, según informó el Ejército israelí.
Hace 1 día · The new Mexican peso has continued to depreciate versus the U.S. dollar, with the dollar rising sharply from 3.4 to 7.2 pesos after the Mexican peso crisis of December 1994. It traded at 8–11 pesos per dollar between 1998 and 2008, at 12–14 between 2008 and 2014, at 15–16 in 2015, and at 17–20 between 2016 and 2019.
Hace 1 día · The Strategic Defense Initiative ( SDI ), nicknamed the Star Wars program, was a proposed missile defense system intended to protect the United States from attack by ballistic strategic nuclear weapons ( intercontinental ballistic missiles and submarine-launched ballistic missiles ). The concept was announced on March 23, 1983, by President ...
Hace 4 días · Knowledge is an awareness of facts, a familiarity with individuals and situations, or a practical skill. Knowledge of facts, also called propositional knowledge, is often characterized as true belief that is distinct from opinion or guesswork by virtue of justification. While there is wide agreement among philosophers that propositional ...
