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I have neighbours above and below my flat and every time something, even as small as a pin, drops on the floor upstairs I can hear it in my room with the door shut. Downstairs, there is a boy who likes to shoot a tennis ball at their ceiling( my floor level) but I have never heard the sound of the ball hitting the ceiling. While at the boy's flat one day I noticed that the ball made considarable noise much more than a dropt pin. In my previous flat I always heard noise from upstairs too. Now, back in my room, my head is about the same distance away from the floor as it is from the ceiling. I do not hear the noise from the ball hitting the ceiling downstairs, but that of a dropt pin on the floor upstairs. Does it mean that the noise/sound is heavy so that gravity pulls the sound of the ball downwards and I can therefore not hear it in my room? If this is true why do our cel phone calls go through despite the fact that they have to reach the transmiters against gravity?

2007-10-30 04:36:50 · 5 answers · asked by Sheng Lee 2 in Science & Mathematics Physics

5 answers

Firstly, sound has no gravity over these distances!
It is likely that the differences that you experience in noise levels are due to transmission of the noise through the structure of the building. Factors such as the amount of soft furnishings and Carpet (both in your flat and the person above's) will have a dramatic difference.
Sound travels in two ways: via the air and via vibration. The difference may be due to the way that sound travels in your flat. Also, whether or not your flat was specifically designed or converted into flats will have a massive effect upon how noise behaves. Also, the frequency of the sound will have a significant effect (bass moves easily through buildings via vibration) whereas trebly sounds are easily killed off.

Ask your local Environmental Health Department for further advice!

Hope this helps.

2007-10-30 04:54:21 · answer #1 · answered by Iain 1 · 0 0

Sound or noise cannot be said to have weight in the traditional sense. The sensation of sound is because of the vibrations in the medium surrounding the ear drum. The answer to your query perhaps lies in the fact that a pin is solid small and heavy, whereas a ping pong ball is light soft and big. You can do one thing. See whether you can hear the ping pong ball falling on the ground from the flat below. May be you will if it is hit with much velocity to compensate for the lower mass. Vibrations created depend on the momentum transferred. Also things falling down increase their speed while the things going up lose speed. Also light things like ping pong ball attain terminal velocity very quickly. because of viscosity of air.

2007-10-30 05:09:08 · answer #2 · answered by Let'slearntothink 7 · 0 0

Laminate floors are banned in some flats as the noise level is too high for neighbors below. The noise level may be high because your upstairs neighbors have inadequate underlay, or no carpet. I would get some legal advice, I'm sure there is a db (decibel level) that your neighbors have to implement to make your living easier.

2007-10-30 05:43:46 · answer #3 · answered by kingslandfloors.co.uk 3 · 0 0

No. Gravity has no discernible effect on sound waves at those distances. The likely reason that you aren't hearing the sound is that the materials in between happen to be better at reflecting or absorbing those particular sound waves. Also, the floor materials above you are different from the ceiling materials below you so they have completely different sound resonating and passing properties.

2007-10-30 04:45:01 · answer #4 · answered by Stop Ranting 5 · 0 0

do no longer use rice. It wont soak up sufficient water. Pull the battery out, and the back case, the left via a window to air. circulate away it there for around 2 days, and then attempt it lower back. If it nevertheless does not paintings circulate away it for greater. while my telephone had water harm it slowly began to restoration its self. affected person is the only way. in case you have left it for over consistent with week and nevertheless no longer something then its thoroughly lengthy previous. Sorry! desire I helped, Eric.

2016-10-14 08:51:09 · answer #5 · answered by ? 4 · 0 0

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