r/SipsTea • u/jaywritethekid • 1d ago

Wait a damn minute! Bruh...

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u/Dakessian 1d ago

What kinda house was this? You can hear them??

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u/DrowningInFeces 1d ago

How did they even discover this was a thing? Talking into the kitchen sink to a person in the shower?

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u/Sea_Prep_Tidal_26 1d ago

As a formal method, this is actually a very old communication technology (if it can even be called a « technology »

They’re called Speaking Tubes.

Used in ships, houses, office buildings, and even in Rolls Royce cars !

If you’ve ever listened to your « favorite genre of music » whilst getting an MRI 🩻 then you were using mini audio tubes that had no metal in them.

Concept was presented in the 17th century

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u/10thousndreflections 1d ago

Speaking tubes don't have traps full of water. OP is talking bullshit. The kitchen sink and the bathroom both have traps with water in them. No way you hear whispers through that. 

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u/Sea_Prep_Tidal_26 1d ago

For those new to the function of P-traps and air/sewer roof vents in modern plumbing systems.

Even if OP is lying or exaggerating about what their older brothers did, if you did get a good mouth seal on the kitchen sink drain (which sounds pretty disgusting) you could generate enough SPL waves to agitate both sides of the water in the trap to hear something. Even faintly.

However with water running from the shower into the drain and then into the trap the dB losses would not have left much to hear.