It all started when the straits times forum published a letter by bank executive joseph wong who kept hearing the sound of falling marbles in his flat.
Marbles going through pipes sound.
Soon after a few cycles the force is too small.
If the sound alters as it moves through a building it means actual marbles and pins can t be the root cause.
Pipes making sounds that sound so much like marbles.
Water bubbles in sanitary pipes.
Can you find a correlation.
Abstract this is a really fun project even if you don t like going on roller coasters yourself.
The pipe bounces back up falls back into place the sound occurs and the cycle repeats a couple of times though there is less force each time.
A sudden change in water flow mixed with soapy bubbles will create air pockets that burst and echo through the pipes.
The sound it creates is similar to that of marbles dropping.
They say the sound comes from water trickling through pvc pipes which gets distorted through concrete before emerging as the sound of falling marbles.
The sounds are primarily coming from the pipes in most cases.
Then again think about this.
Plumbing is a good.
Air can get trapped in the network of pipes as water passes through them and the force can cause the pipes to jostle and disperse the air pocket creating a sound like marbles rolling.
However this usually produces a single sound.
This phenomenon has been in the news lately.
Of course despite the scientific explanations that don t really sound scientific enough.
This causes a vibration in the pipes and creates the sound of marbles dropping.
You ll build a roller coaster track for marbles using foam pipe insulation and masking tape and see how much of an initial drop is required to get the marble to loop the loop.