# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/jean-baptiste-perrin
# Generated: 2026-08-31T15:49:36.571Z

schema: https://schema.org/Person
url: "https://fame.am/person/jean-baptiste-perrin"
name: "Jean Baptiste Perrin"
slug: "jean-baptiste-perrin"
description: "He watched dust motes dance in water and proved atoms were real. Perrin's experiments on Brownian motion turned Einstein's equations into observable fact — the kind of work that closes an argument centuries old."
tagline: "French physicist (1870–1942)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Jean_Perrin_1926.jpg?width=1200"
gender: "male"
country:
  name: "France"
  isoCode: "FR"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1870-09-30"
deathDate: "1942-04-17"
livingStatus: "DECEASED"
scores:
  popularity:           62.91
  momentum:             1.852352623039481
  historical:           24.157788
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: 228
tags:
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    slug: "scientists"
  - name: "Scientist"
    slug: "scientist"
  - name: "Physics"
    slug: "physics"
  - name: "Classical"
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  - name: "Chemistry"
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  - name: "France"
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  - name: "Europe"
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  - name: "19th Century"
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# bio (long form, separated for readability)
bio: |
  Jean Baptiste Perrin was born in France on 30 September 1870. He built his career studying something most scientists had taken for granted: whether matter was truly made of atoms, or if the atomic hypothesis was just a useful fiction. Focusing on Brownian motion — the jittery wandering of tiny particles suspended in liquid — he designed painstaking experiments on sedimentation equilibrium that matched Einstein's theoretical predictions with startling precision. That concordance settled the question: atoms existed, and you could measure their effects. The Nobel Prize in Physics followed in 1926. He died on 17 April 1942.