Portrait of Emil Lenz

Birthday profile

Emil Lenz

Heinrich Lenz, German-Italian physicist and academic (died 1865)

Born
February 12, 1804
Died
January 29, 1865
Zodiac sign
Aquarius
Birth year
1804

About Emil Lenz

Heinrich Friedrich Emil Lenz, usually cited as Emil Lenz or Heinrich Lenz in some countries, was a Russian physicist of Baltic German descent who is most noted for formulating Lenz's law in electrodynamics in 1834. Besides the law named in his honor, Lenz also independently discovered Joule's law in 1842; to honor his efforts on the problem, it is also given the name the "Joule–Lenz law," named also for James Prescott Joule. Lenz eagerly participated in development of the electroplating technology, invented by his friend and colleague Moritz von Jacobi.

Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.

The world when Emil Lenz was born

Emil Lenz was born in 1804. The year snapshot below places that birthday in its cultural and historical setting: the music and films people were following, the headlines shaping public life, and the everyday prices families encountered.

Headlines and milestones

  • Top headlineLewis and Clark expedition begins
  • Technology milestoneMorphine isolated for the first time
  • World population~920M

United States snapshot

  • U.S. leaderThomas Jefferson
  • U.S. population6.1M

1804 versus 2026

These figures put everyday life in Emil Lenz's birth year beside the site's latest United States snapshot.

Measure18042026
Population6.1M341 million

Sources and editorial standards

This profile combines a biographical source with structured birthday and historical context. Sources recorded for this profile: Wikipedia, Encyclopaedia Britannica, Library of Congress, Wikidata. See our editorial policy for sourcing, corrections, and review standards.

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