Relief printing is done by outlining an image on a surface, and then carving along the outline. The artist then applies the raised areas with ink, to be pressed on to a surface. Intaglio is sort of the opposite of relief printing, in that the ink is pushed into the lines and pits and wiped off the surface of the plate. The resulting image comes from the ink in the engraved or etched lines. The resulting image is reversed.
Answer: Los profesores de química encontrarán información sobre el origen cósmico de ... Los elementos químicos nos rodean y forman parte de nosotros. ... sé que hoy no existía, porque los átomos, los protones, los neutrones y los electrones serían ... un alto número de protones en el Universo temprano convirtió al hidrógeno en el elemento dominante: el 95%.
Shadow and light I think is the answer