All Questions
6
questions
4
votes
1
answer
1k
views
Why does bringing a helium filled latex balloon close to my ear make it feel pressurized?
Title pretty much says it all.
Got my son some balloons for his 1st birthday. He was playing with them while I was holding him and everytime he brought one closed to my ear it made my ear feel ...
- 141
0
votes
1
answer
36
views
Sound made by trapped water
When I run water in my bathroom sink and then put the plug in whilst there is still some water left in the basin, there is a high pitch moaning or screeching noise made by my adding the plug. What ...
- 406
3
votes
2
answers
324
views
Why is it hard to feel sound pressure from higher frequencies?
Reading the Wikipedia page on pressure magnitudes,
https://en.wikipedia.org/wiki/Orders_of_magnitude_(pressure)
I was surprised to see that the threshold for pain (140db) is listed as ±200 Pa of ...
- 33
0
votes
0
answers
31
views
Loud, low-frequency "booming" sound in car [duplicate]
I drive a Scion XD, and I've noticed that whenever I drive at about 40mi/hr or so with just the back windows rolled down, I get a loud "booming" effect at roughly 10Hz. What causes this? I assume it ...
- 161
23
votes
4
answers
6k
views
Why do bubbles make a sound?
I have an understanding of how bubbles work. They encapsulate air (or other fluids) in a membrane caused by surface tension.
When they pop, there is often a sound. Sound is a type of energy, kinetic ...
- 459
2
votes
3
answers
753
views
Can random constructive interference with sound waves cause damage?
Any two sound waves have a random chance to constructively interfere with each other at a given spot and this will cause an increase or decrease in pressure. So is it possible that a large number of ...
- 566