# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/richard-adolf-zsigmondy
# Generated: 2026-09-01T22:24:22.711Z

schema: https://schema.org/Person
url: "https://fame.am/person/richard-adolf-zsigmondy"
name: "Richard Adolf Zsigmondy"
slug: "richard-adolf-zsigmondy"
description: "He made the invisible visible. Zsigmondy's ultramicroscope let scientists see particles too small for any lens before it — work that cracked open colloid chemistry and earned him the 1925 Nobel Prize."
tagline: "Austrian chemist (1865-1929)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Richard_Adolf_Zsigmondy_LOC.jpg"
gender: "male"
country:
  name: "Austria"
  isoCode: "AT"
category:
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  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1865-04-01"
deathDate: "1929-09-23"
livingStatus: "DECEASED"
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  momentum:             0.8847736625514404
  historical:           22.038088
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  sourceConfidence:     60
  profileCompleteness:  70
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ranks:
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  country:  null
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  - name: "Chemistry"
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  - name: "Austria"
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# bio (long form, separated for readability)
bio: |
  Richard Adolf Zsigmondy was born 1 April 1865, Austrian by birth but Hungarian by name. His research centered on colloids — those strange suspensions of particles neither dissolved nor settled — a realm where chemistry blurred into physics and nothing behaved as expected. To study what couldn't be seen, he co-invented the slit-ultramicroscope, an instrument that used scattered light to reveal particles beyond the reach of ordinary optics. The work opened a field. In 1925 the Nobel committee in Chemistry gave him the prize for it. He also developed membrane filters that became standard tools. Zsigmondy died 23 September 1929; a crater on the Moon now carries his name.