The Encyclopedia Americana, Volumen10Grolier, 1988 |
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Página 137
... showed that a wire carrying current in a direction parallel to a magnetized needle causes deflection of the needle , and that the direction of the deflection depends on the direction of the current and on whether the needle is above or ...
... showed that a wire carrying current in a direction parallel to a magnetized needle causes deflection of the needle , and that the direction of the deflection depends on the direction of the current and on whether the needle is above or ...
Página 139
... showed that a wire carrying current in a direction parallel to a magnetized needle causes deflection of the needle , and that the direction of the deflection depends on the direction of the current and on whether the needle is above or ...
... showed that a wire carrying current in a direction parallel to a magnetized needle causes deflection of the needle , and that the direction of the deflection depends on the direction of the current and on whether the needle is above or ...
Página 301
... showed how the chick intestine forms by the folding of homogeneous layers and gradual formation of a closed tube . He also showed that the organs of plants , such as leaves and stems , develop through differentiation from initially ...
... showed how the chick intestine forms by the folding of homogeneous layers and gradual formation of a closed tube . He also showed that the organs of plants , such as leaves and stems , develop through differentiation from initially ...
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