why does a wine glass make that ringing noise when putting your finger around the rim?
402354
Benjamin Franklin actually invented a musical instrument based on this concept, which is on display at the Constitution Center in Philadelphia.\n\nThe frequency of the sound resonates inside the glass when you move your finger on the rim.  If you have noticed, the sound varies depending on how much liquid/wine you have in the glass as well.  That has to with the amount of area available for the sound wave to resonate in the glass.  The sound only can resonate in the air that is in the glass - can't resonate through the liquid.
380833
Absolutely NOT.\n\nWhat's really happening when you "crack" your knuckles is that you are either pushing the joint back into or out of its normal position. Joints are the meeting points of two separate bones which are held together by connecting tissues and ligaments. A thick, clear lubricant (made mostly of carbon dioxide and some nitrogen) called synovial fluid is found between the bones. When you stretch or pull your finger to get that desired popping noise, you are causing the bones to pull apart. Pressure is reduced on the synovial fluid and bubbles form that quickly expand and then burst - which is why you get that noise. \n\nDoes Knuckle Cracking Lead to Arthritis?\n\nThere is no scientific evidence that cracking your knuckles leads to arthritis. However, it can't be good to repeatedly push a joint beyond its normal physical range. Besides that, it's annoying. Cracking your knuckles can cause a decrease in your grip.
609158
someone will come along and answer this better than me! but i think its something to do with the fine hair things in our ears (forget what there called) they get bent down during loud nusic, they try to get back to normal and create this sound while trying to get back to normal.(am i making any sense here) my ears are ringing now as i have just come in from a club!
431321
"...it's caused by cavitation, which is a high-tech way of saying bubbles form and then they pop. When you heat water on the stove, the layer at the bottom is the first to boil, meaning it turns into a gas. The water vapor collects into bubbles, which rise toward the surface, passing through cooler water en route. The lower temperature causes the vapor to recondense into liquid and the bubbles collapse, making a noise. This gets gradually louder, as bubble production increases, until the water is so uniformly hot that the bubbles make it to the top without popping. At this point the noise diminishes. But it takes a moment before the vapor pressure builds up sufficiently in the top of the kettle to make it start whistling. That's why you get a brief period of calm before the steam--an incredibly feeble play on words, but a perfectly adequate description of the event."
131245
It DOESN'T! The ice makes room for itself when the glass fills with water. Melted ice takes up less room that solid. So when it melts, the volume in the glass is the same.
709578
Mine does something similar and it's the cd drive vibrating because of a poor 'fit' in the housing.  It stops if I press on the drive, as if I'm shutting it tighter, but once I take my hand off, it sounds like it's ready to take off.
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.
540642
Think of the triangle being way bigger. Like, 2 inches thick and a few yards long. Now, knock your fist on that huge triangle. It vibrates...like a metal banister on a set of public stairs. Why? The sound is produced when you knock your fist against it, and the sound travels back and forth while the pole continues to vibrate. Now shrink the triangle back down to normal size, and hit it again...the noise produced is much higher pitched, because the triangle is not as thick or as long as a metal banister.\nI hope this helps.
697947
when it makes that noise your putting too much voltage thru a capasitor if you do it long enough it will explode you probably have bulged caps
471243
Mine is u-shaped. It goes in kind of like a corkscrew. The straight end starts things off, and then you twist to seat the rest of the stud. It feels weird (unpleasant, actually) until you've done it a few times and get used to the sensation.
707768
good ques and i have a good answer like a ball it is round and not flat so gravity is pulling it and its making it rool...the edges are gettign pullled by gravity and then its rolled of the table and pulled strait down to the ground..
246654
It is a lyricle ring tone that is meant to be an attention getter.\nYou might hear it upon causing some "event" to happen in Windows software. (as you probably already know)!
1024504
ringing in the ears is called Tinnitus \n\nCauses for Tinnitus or ringing in the ear: \n\nAge-related tinnitus causes - hearing loss (presbycusis) occurring usually around age 60. \n\nTrauma-related tinnitus causes - damage to the inner ear (could result from excessive exposure to loud sound). \n\nLong-term use of medications such as aspirin (in large doses), quinine (used in treatment of malaria), antibiotics and anti-inflammatory can be tinnitus causes. Often the unwanted noises disappear once the drugs are discontinued. \n\nTemporomandibular joint problems (jaw disorders resulting in clicking or grating noises) can be one of the tinnitus causes. \n\nOtosclerosis (stiffening of the bones in the middle ear). \n\nTrauma or injury to the head or neck can be a tinnitus cause. \n\nEar wax – Buildup of excess wax in the ear can reduce your ability to hear outside noises, and can be tinnitus causes by causing you to hear internal noises better. \n\nEar infection – If an infection reduces your ability to hear outside noises, you are more likely to hear the noises related to Tinnitus. \n\nAtherosclerosis – Buildup of cholesterol and other fatty deposits causes tinnitus by causing the middle and inner ear to loose its elasticity which causes the blood flow to become more forceful which makes it easier for the ear to detect the beats. \n\nHigh blood pressure – High blood pressure and factors that increase the blood pressure such as stress, alcohol and caffeine are tinnitus causes and can make the sounds more noticeable. \n\nFood--Specific foods may trigger tinnitus. Problem foods include red wine, grain-based spirits, cheese, and chocolate. Tinnitus may also be caused by foods rich in salicylates (the same ingredient as in aspirin, which also causes tinnitus when taken in large amounts).  \n\nGrowths/tumors--Acoustic neuromas, glomous tumors, otosclerosis may all be tinnitus causes. Surgery may be recommended. \n\nStress--Stress is not a direct cause of tinnitus, but it may generally make an already existing case worse. \n\nSince tinnitus might be a symptom of another health problem, see your doctor for any hearing concerns.  Caffeine, tobacco, alcohol, aspirin, antihistamines, and prescription or even over-the-counter medications can aggravate existing tinnitus and are tinnitus causes.  Although there remains no cure, tinnitus symptoms can be overcome.  RingStop is designed to safely relieve and prevent tinnitus and ear noise symptoms.
708019
Ringing of the ear is called Tinnitus.\nInside your inner ear, thousands of auditory cells maintain an electrical charge. Microscopic hairs form a fringe on the surface of each auditory cell. When they're healthy, these hairs move in relation to the pressure of sound waves. The movement triggers the cell to discharge electricity through the auditory nerve. Your brain interprets these signals as sound.\n\nIf the delicate hairs inside your inner ear are bent or broken, they move randomly in a constant state of irritation. Unable to hold their charge, the auditory cells "leak" random electrical impulses to your brain as noise.\n\nDamage to auditory cells in your inner ear most commonly results from:\n\nAge-related hearing loss (presbycusis). This process usually begins around age 60. \nNoise-related damage to your inner ear. This erosion of your hearing ability may result from excessive exposure to loud noise over a long period of time. Tractors, chain saws and weapons are common sources of noise-related hearing loss. Portable music devices, such as MP3 players or iPods, may become a common source of noise-related hearing loss in the future if people play these devices loudly for long periods. \nOther causes of tinnitus may include:\n\nLong-term use of certain medications. Aspirin used in large doses and certain types of antibiotics can affect inner ear cells. Often the unwanted noise disappears when you stop using these drugs. \nChanges in ear bones. Stiffening of the bones in your middle ear (otosclerosis) may affect your hearing. \nInjury. Trauma to your head or neck can damage your inner ear. \nCertain disorders of your blood vessels can cause a type of tinnitus called pulsatile tinnitus. These may include:\n\nAtherosclerosis. With age and buildup of cholesterol and other fatty deposits, major blood vessels close to your middle and inner ear lose some of their elasticity — the ability to flex or expand slightly with each heartbeat. That causes blood flow to become more forceful and sometimes more turbulent, making it easier for your ear to detect the beats. \nHigh blood pressure. Hypertension and factors that increase blood pressure, such as stress, alcohol and caffeine, can make the sound more noticeable. Repositioning your head usually causes the sound to disappear. \nTurbulent blood flow. Narrowing or kinking in a carotid artery or jugular vein can cause turbulent blood flow and head noise. \nMalformation of capillaries. A condition called A-V malformation, which occurs in the connections between arteries and veins, can result in head noise. \nHead and neck tumors. Tinnitus may be a symptom of a tumor in your head or neck.  \n\nSo as not to cause panic.  Maybe it's just a simple case of water trapped in your ear. or an infection called otitis media.  It would be prudent for you to go see an EENT for proper diagnosis. and treatment.  All you need might only be an ear irrigation.\n\nTinnitus is usually caused by a head injury, an infection, such as colds or sinus infection or sinusitis, a disease or exposure to loud sounds such as gunshots and explosions.\n\nIt can be a sign of hearing loss, or it can result from head injuries, or diseases that range from the common cold to diabetes. People who work with noisy equipment, such as power tools, can also get it. Or tinnitus may be initiated by a single loud noise, such as a gunshot or an explosion. It can also be a symptom of almost any ear disorder, including the following:\n\n Ear infections \n Blocked ear canal \n Blocked eustachian tube \n Otosolerosis \n Tumors of the middle ear \n Meniere's disease \n Damage to the ear caused by drugs (such as aspirin and some antibiotics) \n Hearing loss \n Blast injury from a blast or explosion \n\nTinnitus may also occur with other disorders such as anemia, heart and blood vessel disorders including hypertension and arteriosclerosis, and low thyroid hormone levels in the blood (hypothyroidism).\n\nA wide variety
358014
its irritated adenoids. I suffer from allergies and will sometimes make the same noise . LOL scared my hubby on our wedding night , It is a way to try to alleviate the itchy feeling .
992324
cause they make good wine lol
759700
Have you had an xray for this yet?  If not, I would definately recommend you get one.  It sounds like you have have done more than jam your finger.  There are a few different things that could be triggering your knuckle to swell months after the initial injury.  The most common would be a fracture.  There are other possibilities as well.  Does the finger continue to swell bigger or has it leveled out?  You may have a fragment floating around there irritating everything.  I would suggest you definately at least have it checked out, there is a possibility the swelling will go down, but do you really wanna risk the ring not fitting on your wedding day?  Make an appt with your family dr and KNOW what is going on.  Hope your finger feels better and Congratulations on the upcoming wedding!