When you make sound with a wine glass, what is causing the sound, and what is it related to?
449134
To make a wine glass sing, you will need the following materials: \nwine glass - a crystal, thin-walled one works best \nseparate glass of water \nwet fingertip \n\nTo make the wine glass sing, do the following: \nHold the empty wine glass on a tabletop at the base of the stem with one hand. \nWet the index or middle finger of your other hand with some water. \nLightly rub your wet finger along the rim of the glass. \nAs you rub the glass, you will hear the "singing" sound of the glass. You may have to re-wet your finger periodically and/or adjust the pressure of your finger on the rim of the glass to keep producing the sound. \nYou can change the pitch of the sound by adding water to the glass. \n \n\nEvery material (such as glass, steel, concrete) has a natural frequency at which it vibrates, called a resonant frequency. If you put energy into the substance at its resonant frequency, you will force it to vibrate or resonate (resonance is a forced vibration). In the case of the wine glass, your finger slides and sticks along the surface of the glass as you rub the rim (a wet fingertip has no oil and makes a better contact with the glass). The rubbing imparts energy to the glass molecules and causes them to resonate. The motion of your hand sets up a wave of vibration traveling through the glass. The vibrating glass causes air molecules to vibrate at the same frequency. The vibrating air molecules are the sound wave that you hear (the frequency or pitch of the sound wave is the same as the resonant frequency of the glass). \n\nSo, how does the water change the pitch of the singing wine glass? As the resonant wave moves around the glass, it drags the water molecules with it, creating a wave of water that you can see near the edge of the glass. The dragging water molecules effectively increase the mass (both the water and the glass molecules) and reduce the energy of the wave traveling through the glass. When the energy is reduced, so is the frequency of the wave in the glass, which is reflected in the pitch of the sound wave that you hear.  \n\nIf you impart enough energy to the glass at its resonant frequency, you can cause the glass to shatter. However, this takes more energy than you can provide by rubbing the rim. Some singers can sing a note equal to the resonant frequency of a wine glass and cause it to shatter (see Resonance for a video of this phenomenon). \n\nResonance has also been shown to cause bridges to collapse. Marching troops of soldiers will often break cadence when crossing a bridge to prevent a resonance collapse. The most famous example of resonance was the Tacoma Narrows Bridge in Washington State (also called Galloping Gertie). In 1940, just months after its completion, winds in the Tacoma Narrows matched the bridge's resonant frequency and caused the suspension bridge to sway uncontrollably. Within hours, the bridge collapsed (see The Tacoma Narrows Bridge Disaster for photos and a video of this event).
18469
funnily enough, white wine gets red wine out. weird, eh?
1178452
The velocity of sound in air or the frequency of a tuning fork is determined using the principle of resonance of air column.\n\nIn that experiment the length of air column is adjusted and the tuning fork is used to vibrate the air column; the water or glass is not vibrating so much and can be considered as having no vibration at all. \n\nWhen the frequency of tuning fork is high the resonating length of air column is less.\n\nHere in your case, the water and hence the glass are vibrating, and sound is passed through the air. No stationary sound wave is formed above the water level.\n\nThis is a case of forced vibration and the vibration frequency depends only upon the vibration of water particles, the glass vibrates with the frequency of the water particles; the glass is not left free to vibrate with its natural frequency.\n\nIf you have water to some level in the glass and strike the glass with some hammer and leave it to vibrate then only the glass will vibrate with its natural frequency.
482111
Your question lacks specification so that the answers may clearly give you results according to your expectations. any object can make sound for sound is a wave of energy which is released due to a collision of some sort. sound can be created by speakers which uses a permanent magnet with a coil of wire inside of it which has a electrical current flowing through it which in turn vibrates the speaker to make a electromagnetic wave which we interpret as sound.
28756
I go with acoustic resonance.  The cooling fan(s) in your computer are creating noise.  This is approximately "white" or Gaussian noise -- all frequencies.  But, your room and hollow walls are resonant.  A certain frequency and its harmonics are such that sound waves of these frequencies bounce back and forth between the walls and combine to form standing waves.\n\nHere's more:\nhttp://www.acousticalsolutions.com/education/pdfs/Standing_Wave.pdf
302886
When sound travels through a denser material, it's velocity decreases. So say I am sitting in the living room with the FBI director discussing top secret documents, my voice reaches the wall, and then the velocity of sound decreases inside the wall. Now you, being a spy are listening intently on the other side of the wall. When the sound wave reaches you it has lost some of its energy. That is loose talk though, more like it has lost it's intensity because it had a much denser medium to travel through, namely the wall. Now when you put the wine glass to your ear, you are ensuring that the waves that come through the wine glass to your ear are not going anywhere outside your glass, because although the amplitude of the wave is restricted, the wave is contained in a closed space due to reflection of the wave off of the sides of the glass. But that is another loose non physicsy explanation. The real deal has to do with the resonance of the wave inside the glass and the formation of node or antinode when the wave reaches your ear. But that does involve gruesome calculations and the formulae tend to slip your mind. But for the purpose of everyday life, the previous explanation is quite sufficient.. Hopefully you agree with me..eh?\n\nAyerhs.
1040921
its an instrument - basically a series of different sized crystal bowls that rotate.  you rub your wet finger against the crystal to make a sound, like when you rub a wine glass.
413598
blackpowder or gunpowder exploding makes the cracle sound. they just put it in smaller sections so it wont be as loud
738012
Go to START>  SETTINGS> CONTROL PANEL> SOUNDS AND AUDIO DEVICES and make sure it's not muted.
33574
lol thats a funny question i think the reason they make those noises is because there are air pockets in them and when the air pocket bust it goes snap crackle pop lol
62535
A grape. The older I get, the more I wine ;-)
1046853
to be more specific a foley person finds alternative ways to replicate different sounds. ie snapping celery to make it sound like a bone is being broken, hitting a bag full of sand to make it sound like a thud or walking on cereal in a box to make it sound like your walking on gravel or in dry brush. It's actually pretty cool and takes a lot of imagination
7114
water, and most liquids including wine, are often called "incompressible fluids".  this means that you can increase the pressure underwater by a large amount, and the volume won't change (much - it does, but only very very slightly).  compare this to air or gas, which you can easily compress into a smaller volume by increasing the pressure.\n\nnow, what causes cans to crush and bottles to break is a pressure DIFFERENCE.  this means that there is a greater pressure (and hence, greater force) inside the bottle (explosion) or outside the bottle (implosion).  \n\nwhen a bottle of wine is underwater, the pressure from the seawater pushes inwards on the glass bottle, which in turn pushes inwards on the wine.  since the wine is mostly incompressible too, that means it will push back on the bottle, and the pressure will equalize.  it's basically the equivalent of taking an open bottle underwater, and then putting the cap on.  what you have then is just like your wine bottle.\n\n(also, wine bottles are pretty thick, and glass is stronger than you think, especially in that shape and when subject to compressive forces that are evenly distributed.  this explains why they don't burst around that little bit of air in the bottle.)
841515
The simple things are alcohol content and sugar content.\n\nBut each wine, even each bottle of wine, has its own mix of thousands of organic chemicals, in differing quantities.  These give the wine all those funny characteristics that you read about (oak smells, blackberry, melon, etc)
486586
I think its a trumpet sound kind of messed around with studio equipment.Like techno music
692935
Drinking too much wine.
756846
This sounds like it could be an allergic reaction.  Allergic reactions are hard to pin point, the only way you can tell is by experiementing and it looks like you have to a point. If it happens all the time then there is something in the wine that causes this reaction.  Champagne is much different than wine in the way it is processed.  It is less dence and much lighter. Many people are allergic to certian presseratives in wine.  Many will get headaches due to the additives.  It is knowing what is in it and what is causing it then you just avoid that additive. But like I said it will be by reading the label and then learning what effects you and what does not.\nThere is a compound in the skins of grapes that make many people get headaches and it is very common. Wines that contain\n sulfites can also have reactions.  These are more intense within red wines where champagne is made from light grapes and it is not as bitter because they dont let the skins set in the process as long.  That is why light colored wines are less bitter tasting and more sweet, the skin is what is bitter and in red wines skins are not removed for along time.\nThe type of wines and quality might make a difference too