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Tuesday 10 October 2017

6th of october 1687

 Sciences ; physics :


The discovery of a new law

Isaac Newton discovers a new scientific law; the gravitation law.

The last 29th of september  Newton published the book Philosophiae Naturalis Principia Mathematica,  where there was his new law based on the attraction force between two objects depending on their mass , the formula is this: 

Gravitation formula


The law of universal gravitation predicts that the force exerted between two bodies of masses m1 and m2 separated by a distance r is proportional to the product of their masses and inversely proportional to the square of the distance. This theorie explains diferents types of movement like the orbits of the planets or the trayectory of proyectiles.
Newton begin to think in this theorie when he was sitting behind an apple tree and an apple fell on his head, and he asked himself why the apple fell down instead of went up. After years of studying he came to the conclusion of this law. His studies were based on observation and the empirical method . 



Resultado de imagen de newton manzana
Newton with the apple

Newton in his book mentions as references to several pioneers that include Bullialdus (who suggested, without demonstration, that there was a force from the Sun and that it was proportional to the square of the distance), and Borelli (who suggested, also without demonstration, that there was a centrifugal tendency in the movement of the planets that was being counteracted by another force directed towards the Sun).

This discovery will bring new physics and astronomic advantages in all the world .

If you want to know any more about this discovery, click on this link



2 comments:

  1. El artículo está bastante bien, aunque me resulta corto. No entiendo muy bien qué significan las palabras que ponéis al principio, bajo la fecha. Creo que deberíais alinear bien el texto y no poner los enlaces a páginas en castellano. No hay etiquetas.

    En cuanto a la frase "The discovery of a new law", creo que habría que especificar que se trata de Scientific law.

    Saludos

    ReplyDelete
  2. Bueno, lo habéis mejorado pero me sigue pareciendo escaso y veo poco interés. Vuestra nota es un 7,25 que debéis multiplicar por 4 y repartir el resultado.

    ReplyDelete

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