Rheinau in Schwetzingen in Rhein-Neckar-Kreis, Baden-Württemberg, Germany — Central Europe

Johann Jakob Hemmer

1733-1790

Photographed by James Hulse, September 23, 2024

1. Johann Jakob Hemmer Marker

Inscription. Click to hear the inscription.

German:
Kurfürstlicher Hofkaplan Meteorologe und Physiker

Der Pfälzer Johann Jakob Hemmer, ab 1760 Hofkaplan am Kurpfälzer Hof, trat vor allem als Universalgelehrter hervor. Er entwickelte 1769, nachdem ein Blitzeinschlag den Schwetzinger Marstall in Brand versetzt hatte, Franklins Blitzableiter (1752) weiter. Sein „Fünfspitz" ziert bis heute Dächer und Türme ger Sommerresidenz Schwetzingen. Als Mitglied der neu gegründeten Pfälzischen Akademie der Wissenschaften war Hernmer ab 1776 Leiter des Physikalischen Kabinetts. Er baute europaweit 39 Wetterstationen auf und initiierte mit der „Mannheimer Stunden" Messprinzipien, die bis heute für die Meteorologie verbindlich sind. Zur wissenschaftlichen Nutzung der deutschen Sprache veröffentlichte er Regeln zur Orthographie, Grammatik und Gestaltung der deutschen Standardsprache. Obwohl Johann Jakob Hemmer Bahnbrechendes bewirkte, war sein Name lange in Vergessenheit geraten.

English Translation:
Electoral Court Chaplain Meteorologist and Physicist

Johann Jakob Hemmer from the Palatinate, court chaplain at the Electorate

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of the Palatinate court from 1760, was known primarily as a polymath. In 1769, after a lightning strike had set fire to the Schwetzingen stables, he further developed Franklin's lightning rod (1752). His "five-pointed hat" still adorns the roofs and towers of the Schwetzingen summer residence today. As a member of the newly founded Palatine Academy of Sciences, Hemmer was head of the Physics Cabinet from 1776. He built 39 weather stations across Europe and initiated measurement principles with the "Mannheim Hours" that are still binding for meteorology today. For the scientific use of the German language, he published rules on orthography, grammar and the design of the German standard language. Although Johann Jakob Hemmer achieved groundbreaking results, his name was long forgotten.

Erected by Schwetzinger Zeitreise.

Topics. This historical marker is listed in these topic lists: Religion & Religious Structures • Science & Medicine. A significant historical year for this entry is 1760.

Location. 49° 23.049′ N, 8° 34.668′ E. Marker is in Schwetzingen, Baden-Württemberg, in Rhein-Neckar-Kreis. It is in Rheinau. It is on Bahnhofanlage just south of Carl-Theodor-Straße. The marker is located in a small park with a group of 28 panel markers on the west side of the transportation center. Touch for map. Marker is at or near this postal address: Bahnhofanlage 2-4, Schwetzingen BW 68723, Germany. Touch for directions.

The Johann Jakob Hemmer Marker is on the right side of the markers image. Click for full size.

Photographed by James Hulse, September 23, 2024

2. The Johann Jakob Hemmer Marker is on the right side of the markers

Regionally, it is in Europe,

the European Union,

Atlantic Europe,

Central Europe,

the Schengen Area,

Western Europe,

and the Western World.

Historically, it finds itself in what was once the Roman Empire

and specifically also the Holy Roman Empire.

Other nearby markers. At least 8 other markers are within walking distance of this marker: Christian Mayer (here, next to this marker); Maximilian I Joseph (here, next to this marker); Friedrich Ludwig von Sckell (here, next to this marker); Stéphanie de Beauharnais (a few steps from this marker); Nicolas de Pigage (a few steps from this marker); Friedrich I. (a few steps from this marker); Leopold I. (a few steps from this marker); Christian Cannabich (a few steps from this marker). Touch for a list and map of all markers in Schwetzingen.

More about this marker. There is a non-related marker attached on the other side of the post.

Also see . . . Johann Jakob Hemmer. Wikipedia - German Language (Submitted on October 27, 2024, by James Hulse of Medina, Texas.)

Credits. This page was last revised on October 27, 2024. It was originally submitted on October 27, 2024, by James Hulse of Medina, Texas. This page has been viewed 171 times since then and 25 times this year. Photos: 1, 2. submitted on October 27, 2024, by James Hulse of Medina, Texas.