The flying robot "Skye" is filled with helium and is kitted out with a camera and a navigation system. It can be used instead of a drone and is not dangerous.
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Different experiments were demonstrated at the chemistry show. Here clothing dyes were mixed with either basic or acidic liquids.
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This experiment was to show how much energy water and oil can release.
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How can water be cleaned? A mini cleaning facility demonstrates the principles to children.
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The enzyme luciferase (in model) is what makes glow-worms, glow. Its purpose is to attract females.
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This experiment demonstrates how a laser beam can make only the red balloon burst.
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A girl simulates a cloud with her hand. Immediately rain appears in the sandpit.
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The young scientists take some time out to play on some challenging objects.
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The science days took place in four different buildings at the ETH Zurich and the University of Zurich.
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How much light does a tree need to grow? In this room, the youngsters take a look at the issue through a microscope.
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The researchers put plant cells under one of the oldest light microscopes.
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Children solder, build and design their very own "Dance-Bots". These robots are controlled by MP3 players and dance to the music.
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The quadrocopter is completely autonomous, with an on-board computer and position sensors.
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The quadrocopter in action.
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Light sensors can measure the movements of a subject and be used to control them.
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Movements can control a man on the screen. It's a technique that could be used in paraplegia.
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Light and enlightenment. These two aspects of science were put in the spotlight by the federal technology institute ETH Zurich and the University of Zurich at this year’s Zurich Science Days. A number of experiments were carried out in public, those watching were invited to get involved and try their hands at some real science.
2015 is the UNESCO (United Nations Organization for Education, Science and Culture) year of light. As such the two educational institutes promised nothing less than “illuminating conversations and enlightening encounters” with researchers during the visitor event from September 5-6.
People came in droves – according to the event organisers’ own figures, 25,000 adults and children headed to Zurich’s university quarter over the course of the two days to find out more about the capabilities of light in research.
Special events that were particularly popular included a flying robot demonstration, laser experiments and a chemistry show.
(Text: Christian Raaflaub, swissinfo.ch; Pictures: Ester Unterfinger, swissinfo.ch)
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