Humming Sound of a High Voltage Tower!
My Actifit Blog #685 | 13 July 2020 |
On the search for a photo motive (during my bicycle ride) I placed myself under a high voltage tower. There are a lot of them here in my area, because all the small villages and towns have to be supplied with electricity.
Have you ever noticed that directly under these towers there is often a very strong humming and sometimes there are hissing noises? Today I noticed that especially.
It is not the flowing current that you hear, but each power line vibrates a little bit in the air and thus interacts with the other power lines. In this way a sound is created that we hear as a humming sound. When it is wet, tiny drops of water dance on the lines and amplify this hum.
Auf der Suche nach einem Fotomotiv (bei meiner Radfahrt) stellte ich mich unter einen Hochspannungsmast. Es gibt sehr viele hier in meiner Gegend, da all die kleinen Dörfer und Städte mit Strom versorgt werden müssen.
Ist euch schon mal aufgefallen, dass es direkt unter diesen Masten oft sehr stark brummt und es auch manchmal Zischgeräusche gibt? Heute ist mir das besonders aufgefallen.
Es ist nicht der fließende Strom, den man hört, sondern jede Stromleitung schwingt ein klein wenig in der Luft und interagiert dadurch mit den anderen Stromleitungen. Auf diese Weise entsteht ein Schall, den wir als Brummen hören. Bei Nässe tanzen auch winzige Wassertropfen auf den Leitungen und verstärken noch dieses Brummen.
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You have been rewarded 510.84 AFIT tokens for your effort in reaching 12447 activity, as well as your user rank and report quality!
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Sports Hat - L3 + 15 % AFIT 
Friend Boost - L3 + 15 % AFIT + 10 % AFIT 
Sports Hat - L1 + 15 % AFIT 
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Sunglasses - L2 + 15 % AFIT + 1.5 % SPORTS 
Sunglasses - L3 + 15 % AFIT + 2 % SPORTS 
Sports Hat - L5 + 18 % AFIT 
Sunglasses - L4 + 15 % AFIT + 2.5 % SPORTS 
Sunglasses - L5 + 17 % AFIT + 3 % SPORTS 
Sports Hat - L4 + 16 % AFIT 
Friend Boost - L2 + 12 % AFIT Thanks to your friend @lightsplasher + 5 % AFIT Thanks to your friend @lightsplasher 
Water Bottle - L3 + 20 AFIT 
Running Shoes - L3 + 20 AFIT 
Running Shoes - L2 + 15 AFIT 
Water Bottle - L1 + 5 AFIT 
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Running Shoes - L1 + 10 AFIT 
Running Shoes - L4 + 25 AFIT 
Water Bottle - L4 + 35 AFIT 
Running Shoes - L5 + 30 AFIT 
Water Bottle - L5 + 45 AFIT 
Sports Drink - L1 + 3 % SPORTS 
Sports Drink - L2 + 4.5 % SPORTS 
Sports Drink - L3 + 6 % SPORTS 
Sunglasses - L1 + 15 % AFIT + 1 % SPORTS 
Sunglasses - L2 + 15 % AFIT + 1.5 % SPORTS 
Sports Drink - L4 + 6 % SPORTS 
Sunglasses - L3 + 15 % AFIT + 2 % SPORTS 
Sunglasses - L4 + 15 % AFIT + 2.5 % SPORTS 
Sunglasses - L5 + 17 % AFIT + 3 % SPORTS 
Sports Drink - L5 + 7 % SPORTS 
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