Vamos a suponer que estas jugando en tu casa con un amigo y que, de repente, a los dos les da sed. Despues de que cada uno se acaba hasta la ultima gota de agua, le preguntas que si los vasos estan vacios o llenos. Completamente vacios!, te contesta algo enojado, pero tu le aseguras que estan totalmente repletos de aire! Para demostrarselo, tomas un vaso tequilero, le metes un pedazo de papel, lo aprietas contra el fondo y lo introduces boca abajo en un recipiente transparente que tiene un poco mas de la mitad de agua. Dejas el vaso sumergido unos 20 minutos. Despues lo retiras, sacas el papel y... tu amigo descubre, muy impresionado, que esta seco. Tu le explicas que el agua no pudo mojar el papel debido a que el vaso esta lleno de aire, y que este siempre ocupa un lugar en el espacio, porque tu ya leiste Diviertete con aire. / We are going to assume that you are playing at home with a friend and that, suddenly, both of you are thirsty. After each one is finished until the last drop of water, you ask him if the glasses are empty or full. Completely empty! He answers something angry, but you reassure him that they are totally full of air! To prove it, you take a tequila glass, put a piece of paper in it, press it against the bottom and insert it face down into a transparent container that has a little more than half the water. You leave the glass submerged about 20 minutes. Then you remove it, take out the paper and ... your friend discovers, very impressed, that it is dry. You explain that the water could not wet the paper because the glass is full of air, and that it always occupies a place in space, because you already read Have fun with air.
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Seller: Bookmonger.Ltd, HILLSIDE, NJ, U.S.A.
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