Henry Moseley Quotes

• We have here a proof that there is in the atom a fundamental quantity, which increases by regular steps as one passes from one element to the next. This quantity can only be the charge on the central positive nucleus, of the existence of which we already have definite proof.

  Henry Moseley

  Nucleus, Next, Steps

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• En los últimos cuatro días he obtenido el espectro dado por el Tantalio, Cromo, Manganeso, Hierro, Níquel, Cobalto y Cobre y parte del espectro de la Plata. El resultado principal es que todos los elementos dan el mismo tipo de espectro, el resultado para cualquier metal es bastante fácil de adivinar a partir de los resultados para los demás. Esto demuestra que el interior de todos los átomos es muy parecido, y a partir de estos resultados será posible averiguar de qué están compuestos.

  Henry Moseley

  Science, Iron, Giving

  "H. G. J. Moseley: The Life and Letters of an English Physicist, 1887-1915" by J. L. Heilbron, University of California Press, (p. 209), 1974.

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• We have now got what seems to be definite proof that an X ray which spreads out in a spherical form from a source as a wave through the aether can when it meets an atom collect up all its energy from all round and concentrate it on the atom. It is as if when a circular wave on water met an obstacle, the wave were all suddenly to travel round the circle and disappear all round and concentrate its energy on attacking the obstacle. Mechanically of course this is absurd, but mechanics have in this direction been for some time a broken reed.

  Henry Moseley

  Science, Circles, Broken

  Henry Moseley's letter to Margery Moseley (February 2, 1913), as quoted in "H. G. J. Moseley: The Life and Letters of an English Physicist 1887-1915" edited by J. L. Heilbron (p. 201), 1974.

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• The whole subject of the X rays is opening out wonderfully, Bragg has of course got in ahead of us, and so the credit all belongs to him, but that does not make it less interesting. We find that an X ray bulb with a platinum target gives out a sharp line spectrum of five wavelengths which the crystal separates out as if it were a diffraction grating. In this way one can get pure monochromatic X rays. Tomorrow we search for the spectra of other elements. There is here a whole new branch of spectroscopy, which is sure to tell one much about the nature of an atom.

  Henry Moseley

  Science, Giving, Interesting

  "H. G. J. Moseley: The Life and Letters of an English Physicist, 1887-1915" by J. L. Heilbron, University of California Press, (p. 205), 1974.

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