Biography:William Hyde Wollaston: Difference between revisions

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{{Short description|English scientist associated with early observations of solar spectrum lines}}
{{Short description|English scientist associated with early observations of solar spectrum lines}}
{{Biography page}}
{{Infobox scientist
{{Infobox scientist
| name = William Hyde Wollaston
| name = William Hyde Wollaston

Revision as of 17:35, 24 May 2026


William Hyde Wollaston
Wollaston
Wollaston
Born 6 August 1766
East Dereham, Norfolk, England
Died 22 December 1828
London, England


Known for Early observation of solar dark lines; discovery of palladium and rhodium

William Hyde Wollaston (1766-1828) was an English scientist whose work ranged across chemistry, optics, and physics. In 1802 he observed dark lines in the solar spectrum, an important early step in the history of spectroscopy.

Solar spectrum

Wollaston observed dark lines in sunlight using a prism and a narrow slit. He interpreted them as boundaries between colors rather than as absorption features. Joseph von Fraunhofer later mapped many more of these lines with greater precision, and they became known as Fraunhofer lines.

Although Wollaston's observation came before quantum mechanics, spectral lines later became central evidence for discrete atomic energy levels and quantum transitions.

References


Author: Harold Foppele