All Questions
Tagged with everyday-life pressure
10
questions with no upvoted or accepted answers
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
1
vote
0
answers
153
views
Avoiding snails around potted greenery
I am not sure how a snail "sticks" to surfaces e.g. plastic pot or stone. I suspect that it produces mucus, which then adheres with molecular forces.
I would like to know, how does the ...
- 1,815
1
vote
0
answers
73
views
How does a mister form the mist?
A mister exploits pressure difference to pull water up from the reservoir and through the outlet (Ref:https://www.explainthatstuff.com/aerosolcans.html )But what converts the water in bulk liquid form ...
- 833
1
vote
0
answers
406
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Is it possible to breathe deep underwater with a pipe if enclosed in a box?
A problem in the physics textbook I was using asked how deep someone could go underwater and still manage to breath through a strong pipe or hose, assuming that the maximum pressure difference the ...
- 127
1
vote
0
answers
194
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Looking for equation that explains empiric data of tire pressure change due to load
I did some measurements on how tire pressure changes due to different loads in a car.
There are still some open questions I can't seem to solve on my own, even though I could already use parts of ...
- 11
0
votes
1
answer
152
views
Keep flow rate constant from a drip container
I will be using an elevated container attached to tubing with a ball valve on the end to drip a liquid into my saltwater aquarium to help with coral growth. Conceptually it will be similar to an IV ...
- 1
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
0
votes
1
answer
123
views
Pouring liquid out of a bottle smoothly
Can one calculate the vacuum pressure created inside a bottle when pouring liquid from it?
Glass bottle
38mm diameter orifice
- 1
0
votes
1
answer
123
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is boiling point of the gas cause cooling in expansion process of refrigeration?
I have a doubt about expansion process.
Some people say it's an adiabatic expansion, but other say it's something related to the nozzle.
What is the actual cause for cooling in expansion process?
...
- 191
0
votes
0
answers
419
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What's the difference between compression by a gas/liquid or by a solid?
Atmospheric pressure is about $1atm$, that is $\approx 10^5 N/m^2$, that is, if $g = 9.8m/s^2$ we get a weight of $\approx 10.339 tons/m^2$. And yet, nobody feels like carrying 10 tons of stuff above ...
- 3,274