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Know how noise pollution affects your health ANI News
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=Fv7VXipiVl0
Whether it’s loud trucks, planes taking off or rattling freight trains: Noise makes people sick. But there are innovative solutions to reduce noise. This documentary presents some of them. • So-called crossbars are a great relief for many residents of noisy cities. These are new buildings that close gaps between rows of houses to keep street noise out. • In the Middle Rhine Valley, as many as 600 trains thunder over the tracks in a given day. In recent years, so-called whisper brakes have been installed on many rail cars to reduce rail noise. But for local residents, it’s not enough. They are calling for further quiet” measures. • The start-up recalm wants to use antisound to reduce noise in mining vehicles. Until now, drivers had the roar and hum of the machines in their ears for eight hours a day, all but guaranteeing hearing loss. With the new high-tech system, low frequencies are reduced, leading to 50% less noise. • Owls are silent. That’s why they are the perfect model for Professor Jan Werner Delfs of the German Aerospace Center (DLR) in Braunschweig. Along with a colleague, the acoustics expert and aerodynamics engineer is researching the art of silent flight - and thus the possibility of making aircraft fly more quietly. • #documentary #dwdocumentary • ______ • DW Documentary gives you knowledge beyond the headlines. Watch top documentaries from German broadcasters and international production companies. Meet intriguing people, travel to distant lands, get a look behind the complexities of daily life and build a deeper understanding of current affairs and global events. Subscribe and explore the world around you with DW Documentary. • Subscribe to: • ⮞ DW Documentary (English): / dwdocumentary • ⮞ DW Documental (Spanish): / dwdocumental • ⮞ DW Documentary وثائقية دي دبليو (Arabic): / dwdocarabia • ⮞ DW Doku (German): / dwdoku • ⮞ DW Documentary हिन्दी (Hindi): / dwdochindi • For more visit: http://www.dw.com/en/tv/docfilm/s-3610 • Follow DW Documentary on Instagram: / dwdocumentary • Follow DW Documental on Facebook: / dwdocumental • We kindly ask viewers to read and stick to the DW netiquette policy on our channel: https://p.dw.com/p/MF1G
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