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Posts from the ‘Science’ category

My Berlin: Minkowski space in Heerstrasse cemetery

Waldfriedhof Heerstrasse (Heerstrasse forest cemetery)

Is this a small park with plenty of trees, hilly terrain, and a small lake? Or is this simply a forest cemetery, a final resting spot for many prominent Berliners?

As part of an ongoing search for gravesites for physicists and mathematicians in Germany, I visited Berlin’s Friedhof Heerstrasse, near the city’s Olympic Stadium. Within the cemetery is Sausuhlensee lake, which settled into a former glacial gully, around which much of the cemetery came into being in 1924. Named after the early 20th-century Heerstrasse estate district whose residents were to be buried here, the cemetery stretches out over an area of almost 15 hectares (37 acres).

I found the grave for physicist Hermann Minkowski, but among the buried there are other “Promis” (prominent).

Friedhof Heerstrasse, Westend, Berlin, Germany, Deutschland, fotoeins.com

Forested park, forest cemetery.

Friedhof Heerstrasse, Westend, Berlin, Germany, Deutschland, fotoeins.com

The calm waters of Sausuhlensee lake on an autumn afternoon.


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Schottentor, Votivkirche, 9. Bezirk, Alsergrund, Wien, Vienna, Austria, Österreich, fotoeins.com

Vienna: 9 spots in the 9th district

Above/featured: Votivkirche (Votive church) from Schottentor. Photo, 20 May 2023.

Two visits: two months spread over two years.
A thousand kilometres of walking.
Hundreds of historical spots and locations tracked, spotted, and photographed.

It makes sense that out of Vienna’s 23 city districts, I’ll frequent some more than others. The 1st district, or the Innere Stadt, is unavoidable, because that’s where most visitors to the city will congregate. The 2nd (Leopoldstadt) and the 6th (Mariahilf) are districts where I had separate month-long stays. But it’s the 9th district (Alsergrund) into which I wandered through countless times, including tracking my way to the 18th and 19th districts.

Out of many interesting little spots in Alsergrund, I’ve highlighted nine examples from a historical “mélange” of architecture, Jewish culture, medicine, music, and physics. If you’re wondering about the Votivkirche (Votive Church) in the image above, I’ll have more about the church in future posts about Ringstrasse (Ring Road) architecture as well as the architectural works by Heinrich Ferstel.


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Vienna: Dr. Olga Ehrenhaft-Steindler, trailblazer & women’s advocate

In examining the history of the University of Vienna, I discovered Olga Ehrenhaft-Steindler was the first woman to receive a doctoral degree in physics from the university in 1903. Who was she? How did she become the first? How did society of the time view the education of young women?

I’m starting a series on women who left their mark on Vienna and Austria, and some of the traces they left behind in the Austrian capital city. With educators, inventors, writers, and scientists, my serial includes: Dr. Marietta Blau; Marianne Hainisch; Hedwig Kiesler, a.k.a. Hedy Lamarr; Dr. Lise Meitner; Dr. Gabriele Possanner; Dr. Elise Richter; and Bertha von Suttner.


Who: Dr. Olga Ehrenhaft-Steindler: b/✵ 28 Oct 1879, d/✟ 21 Dec 1933.
PhD: 1st woman with doctoral degree in physics from University of Vienna, 1903.
Educator: Early 20th-century teacher & advocate for better access to education for young women.

In late 19th-century and early 20th-century Austria and Vienna, Olga Steindler was one of countless women who faced difficulties and challenges by young women who wanted to expand their education and improve employment, all of which were viewed by society at the time as undesirable. Feminism or anything similar did not exist.

Born and raised in Vienna, Olga Steindler departed her home for Prague to complete and pass her final high-school examinations in 1899, because young women were not permitted to do so within Austria at the time. She subsequently enrolled at the University of Vienna to study physics and mathematics within the Faculty of Philosophy. Only two years earlier in 1897 had the University of Vienna finally accepted the enrolment of women, although they were initially allowed only into the Faculty of Philosophy. In 1903, Steindler became the first woman to receive a Ph.D. in physics from the University of Vienna after successfully completing her research dissertation.

Completing qualifications for teaching at secondary (high) schools in the same year, she joined the “Athenäum” where she taught young women about experimental physics; she also taught at Vienna’s first girls’ secondary school established by Marianne Hainisch in the city’s 1st district. In 1907, she founded two new schools in Vienna: a girls’ public secondary school in the city’s 2nd district, and a business school for young women in the city’s 8th district. Steindler married her physicist colleague Dr. Felix Ehrenhaft in 1908; she became known as Dr. Olga Ehrenhaft-Steindler. She championed the cause for educating girls and young women, and creating new opportunities in science, business, and society at large. For her dedicated service to the public, Austria awarded her in 1931 the title of “Hofrat” as a new member of the imperial court advisory council, an honour uncommon among Austrian women at the time. At the age of 54, Dr. Olga Ehrenhaft-Steindler died in December 1933 from complications after having contracted pneumonia.


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My Berlin: Humboldt University’s court of honour

Above/featured: Illuminated by autumn morning light, Helmholtz stands proud in the Humboldt University’s “Ehrenhof”.

If you’re in Berlin for the first time, you’ll likely make your way to the city centre and the classic tree-lined avenue Unter den Linden. When you’re not people-watching, you’ll likely admire the architecture along the way. Across the street from Bebelplatz plaza is the main building of the Humboldt University (HU). In its front court or “court of honour” are several memorial statues dedicated to some key figures in the history of arts, sciences, and the university: Hermann Helmholtz, Lise Meitner, Max Planck, and Theodor Mommsen.

The Humboldt University was one of many stops in Berlin during my visit in November 2021.

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Berlin Wannsee cemetery: Helmholtz, Fischer, Conrad

Above/featured: Friedhof Wannsee Lindenstrasse with Andreaskirche in the background.

I came here looking for a physicist, but I also found a Nobel-Prize winning chemist and a successful banker.

In the southwest corner of metropolitan Berlin tucked away under rows of leafy trees in a quiet residential neighbourhood in Wannsee is a small cemetery, next to a tall red brick church Andreaskirche. With the main (east) entrance off Lindenstrasse, the cemetery is called Friedhof Wannsee Lindenstrasse; alternate names include “Neuer Friedhof Wannsee” and “Friedhof Wannsee II.” Opened in 1887, the cemetery is one of the smallest in the city with an area about 1.9 hectares (19-thousand square metres) or a shade under 5 acres.

(My day trip to Wannsee was one element of my “quick” 11-day hop to Berlin in autumn 2021.)

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