Illustration of the size of an ISLE-manufactured micro gear wheel.
Picture Source: Fraunhofer ILT, Aachen/Volker Lannert
Take the example of the clock- and watchmaking industry, where so-called jewel bearings have to be precisely manufactured and subsequently mounted. At present, experienced specialists manually produce and mount these micro components by means of grinding and polishing, which takes a lot of time. Moreover, ablative techniques always entail a loss of material –typically as high as 80% – which can seriously impact costs depending on the specific material.Given the tiny scale of micro components, transparent, i.e. “colorless”, materials are not amenable to manual processing, as the craftsman cannot see them well enough. Consequently, manufacturers revert to using rubies, which in addition to their hardness also have the advantage of being a red color that is easily visible.
Axel Bauer | Fraunhofer ILT
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Self-driving cars will be on our streets in the foreseeable future. In Graz, research is currently dedicated to an innovative driver assistance system that takes over control if there is a danger of collision. It was nature that inspired Dr Manfred Hartbauer from the Institute of Zoology at the University of Graz: in dangerous traffic situations, migratory locusts react around ten times faster than humans. Working together with an interdisciplinary team, Hartbauer is investigating an affordable collision detector that is equipped with artificial locust eyes and can recognise potential crashes in time, during both day and night.
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In cooperation with the Center for Nano-Optics of Georgia State University in Atlanta (USA), scientists of the Laboratory for Attosecond Physics of the Max Planck Institute of Quantum Optics and the Ludwig-Maximilians-Universität have made simulations of the processes that happen when a layer of carbon atoms is irradiated with strong laser light.
Electrons hit by strong laser pulses change their location on ultrashort timescales, i.e. within a couple of attoseconds (1 as = 10 to the minus 18 sec). In...
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