[SystemSafety] 200th Anniversary of the bicycle [off topic?]

[Peter Bernard Ladkin]

[For those of us who consider road transportation as a engineered system, it won't be off topic.]

Today is the day 200 years ago when Karl Friedrich Christian Ludwig Freiherr Drais von Sauerbronn,
aka Charlie Drais, took a turn for the first time on his velocipede.
https://de.wikipedia.org/wiki/Karl_von_Drais#/media/File:Drais.jpeg

Another name for it in English is "dandy horse" but I prefer the French.

They are still popular amongst the smaller humans in Germany https://www.puky.de/de/red/laufraeder
One of Andrea's day kids brings one, and a couple go by every morning on the way to the Kindergarten
up the road.

It took another 46 years for them to get pedals (Pierre Lallement, 1863
https://de.wikipedia.org/wiki/Fahrradpedal#/media/File:Pierre_Lallemant_1870.jpg )

At that point, it was known in German as a Draisine. Nowadays the name "Draisine" is reserved for a
hand-propelled wagon for the railway, such as
https://de.wikipedia.org/wiki/Eisenbahn-Draisine#/media/File:Drezyna_442.jpg , which Charlie also
invented, but a bit later in 1842.

PBL

Prof. Peter Bernard Ladkin, Bielefeld, Germany
MoreInCommon
Je suis Charlie
Tel+msg +49 (0)521 880 7319  www.rvs-bi.de





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