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Home > Dictionary of Science Quotations > Scientist Names Index M > Henry Moseley Quotes

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Henry Moseley
(23 Nov 1887 - 10 Aug 1915)

English physicist.


Science Quotes by Henry Moseley (3 quotes)

In the last four days I have got the spectrum given by Tantalum. Chromium. Manganese. Iron. Nickel. Cobalt. and Copper and part of the Silver spectrum. The chief result is that all the elements give the same kind of spectrum, the result for any metal being quite easy to guess from the results for the others. This shews that the insides of all the atoms are very much alike, and from these results it will be possible to find out something of what the insides are made up of.
— Henry Moseley
Letter to his mother (2 Nov 1913). In J. L. Heilbron (ed.), H. G. J. Moseley: The Life and Letters of an English Physicist 1887-1915 (1974), 209.
Science quotes on:  |  Atom (251)  |  Chromium (2)  |  Cobalt (4)  |  Copper (18)  |  Element (129)  |  Guess (36)  |  Iron (53)  |  Manganese (2)  |  Metal (38)  |  Nickel (2)  |  Result (250)  |  Silver (26)  |  Spectrum (23)  |  Tantalum (2)

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
Letter to his mother (18 May 1913). In J. L. Heilbron (ed.), H. G. J. Moseley: The Life and Letters of an English Physicist 1887-1915 (1974), 205.
Science quotes on:  |  Atom (251)  |  Sir Lawrence Bragg (12)  |  Crystal (47)  |  Diffraction (3)  |  Element (129)  |  Platinum (6)  |  Spectroscopy (11)  |  Spectrum (23)  |  Target (4)  |  X-ray (18)

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
Letter to Margery Moseley (2 Feb 1913). In J. L. Heilbron (ed.), H. G. J. Moseley: The Life and Letters of an English Physicist 1887-1915 (1974), 201.
Science quotes on:  |  Atom (251)  |  Energy (185)  |  Wave (55)  |  X-ray (18)


See also:
  • 23 Nov - short biography, births, deaths and events on date of Moseley's birth.

Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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