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University of Graz News Schon gewusst?

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Tuesday, 21 July 2015

Schon gewusst?

Das exakte physikalische Phänomen weshalb Fliegen kopfüber auf der Decke sitzen können, ist bis heute nicht restlos geklärt. Foto: Pixabay

Das exakte physikalische Phänomen weshalb Fliegen kopfüber auf der Decke sitzen können, ist bis heute nicht restlos geklärt. Foto: Pixabay

Mit Hilfe der Van-der-Waals-Kräfte können Fliegen auf der Zimmerdecke sitzen

Warum können Fliegen auf der Decke sitzen? Der Zoologe Dr. Manfred Hartbauer von der Universität Graz klärt auf: „Fliegen haben ein sehr geringes Körpergewicht und dazu lappige Bein-Enden. Aufgrund der großen Oberfläche haften die Tiere an der Decke oder können auch kopfüber Wände hinunterkrabbeln. Dabei wirken die so genannten Van-der-Waals-Kräfte wie ein unsichtbarer Klebstoff. Das exakte physikalische Phänomen dahinter ist bis heute nicht restlos geklärt. Auch Geckos können sich auf dieselbe Art auf extrem glatten Wänden und Decken fortbewegen. Manche Ameisen, die in asiatischen Regenwäldern leben, haben an ihren Füßen winzige Körperöffnungen, über die sie eine Flüssigkeit absondern. Diese wirkt wie ein Klebefilm auf dem Untergrund, sodass die Tierchen sogar auf äußerst rutschigen fleischfressenden Pflanzen krabbeln können und andere Insekten, die hineingestürzt sind, wieder herausschleppen.“

created by Dagmar Eklaude

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At the beginning of December, the University of Graz transformed the theater into a laboratory: as part of “Chemical Life,” teacher training students staged a chemical Christmas show for Styrian school classes—complete with ethanol rockets, nitrogen snow, and glowing effects. An evening designed to inspire interest in studying chemistry.

Train by train: Koralm railway accelerates exchange between the Universities

Lectures at the University of Klagenfurt in the morning, seminars at the University of Graz in the afternoon: Austria's longest tunnel and a journey time of around 45 minutes make it easy. The Koralm railway increases the speed of networking between the two university locations. The collaboration builds on existing cooperation - for example in the areas of teacher training, Slavic studies and as employers, the universities are well coordinated.

On the trail of the Big Bang: University of Graz receives 1.5 million euros for doctoral programmes

The Austrian Science Fund FWF has selected the Doctoral Programme in Theoretical Particle Physics at the University of Graz for funding from the Doc.funds. Six young scientists will be funded for 3.5 years. They will gain fundamentally new insights into the origins of the world.

From trans women and knee prostheses: sports science prizes awarded

Walking better with a prosthesis, successfully getting rid of excess weight, training more effectively, more fairness for trans people in sport: these were the topics addressed by the students at the University of Graz who were awarded the sports science prizes for their Master's theses on 3 December 2025.

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