Ausgezeichnete Masterarbeit an der JLU Gießen giessener-anzeiger.de - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from giessener-anzeiger.de Daily Mail and Mail on Sunday newspapers.
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IMAGE: The single celled organism can detect, in which direction the concentration of nutrients is highest. view more
Credit: TU Wien
How is it possible to move in the desired direction without a brain or nervous system? Single-celled organisms apparently manage this feat without any problems: for example, they can swim towards food with the help of small flagellar tails.
How these extremely simply built creatures manage to do this was not entirely clear until now. However, a research team at TU Wien (Vienna) has now been able to simulate this process on the computer: They calculated the physical interaction between a very simple model organism and its environment. This environment is a liquid with a non-uniform chemical composition, it contains food sources that are unevenly distributed.
Sidharth, man with an eye to the cosmos, leaves BPSM; plans to continue research
By M Somasekhar| Updated: 29th April 2021 5:19 pm IST
M Somasekhar
The Birla Planetarium and the Science Museum are part of the tourist circuit of Hyderabad for decades. Perched on a hillock, right in the heart of the city, one can take a seat and go on a quick and exciting trip into outer space through the shows that run at the Planetarium.
The man, who led teams that transformed the ‘Naubat Pahad’ into a modern science complex, attracting hundreds of common people to a good number of Nobel laureates and scientists over the last 35 years is Dr B G Sidharth.
Кто родился 19 апреля pnp.ru - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from pnp.ru Daily Mail and Mail on Sunday newspapers.
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IMAGE: A scattering-invariant mode of light is generated by sending a laser beam onto a judiciously configured spatial light modulator (see quadratic pixel array on the left). This modulated beam then. view more
Credit: Allard Mosk/Matthias Kühmayer
Why is sugar not transparent? Because light that penetrates a piece of sugar is scattered, altered and deflected in a highly complicated way. However, as a research team from TU Wien (Vienna) and Utrecht University (Netherlands) has now been able to show, there is a class of very special light waves for which this does not apply: for any specific disordered medium such as the sugar cube you may just have put in your coffee tailor-made light beams can be constructed that are practically not changed by this medium, but only attenuated. The light beam penetrates the medium, and a light pattern arrives on the other side that has the same shape as if the medium were not there at all.