Tuesday, August 23, 2016

The sound if a black hole appears

Coffee cups, chewing gum, tilting belong in the trash. At home make the most so in public places not necessarily. Since the debris flying onto the sidewalk or even laboriously folded into the cracks between the commuter train seats. Why throw people off their waste, which can be done about it? This too is a science in itself and at least for Berlin an important. Current findings to be presented on Saturday during the "Long Night of Science". Visitors will not only listen, but also to become active and are invited to participate in an experiment.

At the Institute of Psychology at the Humboldt University in Adlershof (Rudower Chaussee 18) "littering" as the throw away in the jargon is called, has spent over ten years. Surveys show that there is a big difference between talking about their own disposable behavior ( "No trash near" or "The apple brew rots but fast") or whether it is ( "to the behavior of others, the lazy, poorly educated , comfortable"). Three countermeasures admit it, says Reinhard Beyer of the HU: punishment, influence people and change the situation. "The former has little success," he says. It would take a lot of staff that checked. "Who will not get caught, that could perceive as a reward, then certainly throw away waste." It is better to act on the man, but not an incriminating finger, but in a positive way. Just as it does for example, the BSR with their image campaigns to draw attention to cleanliness in the city. In addition, the environment should be friendly for disposal, thus placing more wastebaskets or existing better, is the conclusion of researchers.

Who visits her lectures (every hour from 17.30), can be Family even then. Two dozen photos are to be considered and to decide whether the person shown dispose of their wastewater properly or not. "We want to find out what types are evaluated by littering particularly critical and if there is ever a sensibility for it," explains Beyer. "Perhaps there are people who are the not interfere, even that would be feasible in a large city."

Berlin water is tested for harmful substances

To dirt in the broad sense it is just next door at the Federal Institute for Materials Research and Testing (Richard-Willstätter-Straße 11). There the Berlin drinking water is tested for contaminants such as arsenic, cadmium and lead.

The quality of drinking water is also subject at the Free University. At the Institute of Geographical Sciences (Malteser 74-100 in Lankwitz) Students demonstrate with experiments, as the water is purified in the ground and compare the water from the tap with expensive mineral water from bottles. Is there really big differences, or the selection of the water rather head thing?

What comes out at the other end, that is what the state of the Berlin Water Works outside the main building of the TU (Straße des 17. Juni 135 in Charlottenburg). They will tell you that can attract not only heat, but also sustainable fertilizer from the waste water.

On the way to fusion power plant

Very close it comes to the energy supply of the future. In the House of Physics (Hardenbergstrasse 36 in Charlottenburg) will report in Greifswald Robert Wolf from experiment "Wendelstein 7-X". Since a few months the plant, want to explore the basis for a fusion power plant in the physicist runs. This could even deliver large amounts of energy - without producing greenhouse gases and large quantities radiant waste.

In tangled magnetic fields, the many millions of degrees hot plasma is confined and experimented in Wendelstein 7-X. The first tests have exceeded all expectations, says Wolf. still lurk What difficulties on the way to a power plant and how the researchers intend to tackle this, that is what his presentation from 19 am.

hear gravitational waves

Who does not get tired of physics, can also hear gravitational waves in the house of physics. Albert Einstein had predicted this "compressions spacetime" a hundred years ago. In September 2015 this was first measured. "I'll play a different wave," says Pau Amaro-Seoane from the Max Planck Institute for Gravitational Physics in Potsdam. "And it is one that is created when dipping a small black hole into a supermassive black hole." As astrophysicists want to get these mysterious waves on the track and what they hope to gain from this, the researchers will explain in his presentation at 21 o'clock.