it really is nice that there's some people out there that still do this kind of stuff because believe it or not being an audio engineer was a dream of mine when I was in school but for some darn reason I decided to go in the military.... I really wish I took the time to speak to engineering departments more often because from my understanding none of the guidance counselors or people who are career counselors knew anything about a audio engineering of course I went to a school which was more suited for people who would probably become diesel mechanics then audio engineers. for those of you out there that have a passionate audio I suggest you do everything to pursue it.
from 4:15: one was constructive the other destructive. where the foam accumulated is low pressure meaning a node. where the is no foam, the pressure is highest, meaning an antinode. you are describing higher frequency than the one that exists inside the tube. still a good video and the beat effect was explained in a great manner. cheers
KanuTo Peña I hear what you are saying about node and antinode locations, I thought so too originally.. but the math didn't seem to work out when I measured the locations. The only solution was to have "cancellation" (node) be the points where there is no extreme high or extreme low pressure. It was a few years ago, but I can do the measurements again and post them for you in a few weeks (we are on break)
I also had tried this experiment, the effect is very good but there is problem of static charge developed around styrofoam and they stick together. My observation is the static charge is less in glass tube rather than acrylic tube.
I don't have a great solution other than avoiding movement and long periods of use. I tried several different types of medium as well. Some styrofoam have greater tendency to build charge than others. The worst is when someone moves the tube carelessly. Best of luck!
Sir I tried making this tube. I removed the ends of flourescent tube removed mercury the white powder. Fixed a piston on one end. Using a loudspeaker driven by signal generator applied sound to the other end. I applied every frequencies within audible range but thermocol balls doesn't move. Not even vibrates. I adjusted the length of the tube using piston achieved resonance (higher sound was heard) even at resonance the beads wouldn't move. Sir could you please tell me the reason and how to solve it. I am doing this as part of my 3rd year bsc physics project. Please help
Lots of factors involved.. had to try many diff combinations before finding the right recipe. I would recommend a wider tube if it's a fluorescent light. Try a 3 or 4 inch diameter clear pipe from a plumbing store. Also make sure the signal is loud and a sine wave. Base notes will perform better so get a long length tube. Lmk how it goes!
I made one with an acrylic tube, but how would you get the styrofoam pellets to not stick to the tube, in other words make the styrofoam not have the static charge.
Mine get a tad charged too and require time to settle. I imagine smaller beads are worse due to more rubbing at higher speeds (less inertia and more exposed contact area total)
it really is nice that there's some people out there that still do this kind of stuff because believe it or not being an audio engineer was a dream of mine when I was in school but for some darn reason I decided to go in the military....
I really wish I took the time to speak to engineering departments more often because from my understanding none of the guidance counselors or people who are career counselors knew anything about a audio engineering of course I went to a school which was more suited for people who would probably become diesel mechanics then audio engineers.
for those of you out there that have a passionate audio I suggest you do everything to pursue it.
from 4:15:
one was constructive the other destructive. where the foam accumulated is low pressure meaning a node. where the is no foam, the pressure is highest, meaning an antinode. you are describing higher frequency than the one that exists inside the tube.
still a good video and the beat effect was explained in a great manner.
cheers
KanuTo Peña I hear what you are saying about node and antinode locations, I thought so too originally.. but the math didn't seem to work out when I measured the locations. The only solution was to have "cancellation" (node) be the points where there is no extreme high or extreme low pressure. It was a few years ago, but I can do the measurements again and post them for you in a few weeks (we are on break)
its much easier to learn it this way , thanks a lot sir!
I love Mr. H!!
I enjoyed it. Thank you.
I also had tried this experiment, the effect is very good but there is problem of static charge developed around styrofoam and they stick together. My observation is the static charge is less in glass tube rather than acrylic tube.
I don't have a great solution other than avoiding movement and long periods of use. I tried several different types of medium as well. Some styrofoam have greater tendency to build charge than others. The worst is when someone moves the tube carelessly. Best of luck!
Yw! Thanks for the compliment
do u have fb??facebook??
5:27 Walk! \m/
Great video, thanks
Can you please guide me how to remove static charges.
Sir I tried making this tube. I removed the ends of flourescent tube removed mercury the white powder. Fixed a piston on one end. Using a loudspeaker driven by signal generator applied sound to the other end. I applied every frequencies within audible range but thermocol balls doesn't move. Not even vibrates. I adjusted the length of the tube using piston achieved resonance (higher sound was heard) even at resonance the beads wouldn't move. Sir could you please tell me the reason and how to solve it. I am doing this as part of my 3rd year bsc physics project. Please help
Lots of factors involved.. had to try many diff combinations before finding the right recipe. I would recommend a wider tube if it's a fluorescent light. Try a 3 or 4 inch diameter clear pipe from a plumbing store. Also make sure the signal is loud and a sine wave. Base notes will perform better so get a long length tube. Lmk how it goes!
How did you hook it up to the keyboard?
Output jack to guitar amp head to speaker. Make sure the resistance of your speaker matches the amp.. Likely 8 ohms
I made one with an acrylic tube, but how would you get the styrofoam pellets to not stick to the tube, in other words make the styrofoam not have the static charge.
Mine get a tad charged too and require time to settle. I imagine smaller beads are worse due to more rubbing at higher speeds (less inertia and more exposed contact area total)
MrH physics do you think I should use a anti static spray in the tube
It's worth a try. Lmk how it goes. If it fails, that is valuable too as it provides information
@@mrhphysics7848 Ok I'll tell you I'm building one/fixing one for an engineering project, one was built but doesn't work properly
Nice
omg..this is suprb
name? izuku midoriya
pfp? naruto uzumaki
Hotel? Trivago
Mr H low key looks like Ben Affleck
Awesome video btw