Opposite electrical charges can build up in these two layers; when geomagnetic disturbances, perhaps triggered by the aurora, propagate down through the atmosphere, it can cause an electrical discharge between the layers, which causes the noise.
The new recordings were made in an attempt to investigate the phenomenon further. Near the village of Fiskars, the team set up their recording equipment to listen for popping, crackling sounds emanating from the atmosphere.
Arctic wilderness tales often wax poetic about dazzling displays of northern lights painting the skies. But for at least the past century, some of those stories have also mentioned eerie noises associated with especially powerful auroras.
Witnesses say the sounds are comparable to radio static, like a faint crackling, light rustling, or hissing heard for a few minutes during a strong display. While the weird sounds were long considered folklore, Finnish scientists have not only shown that they really happen, but now the team thinks they know why.
The answer can be traced to charged particles trapped in a layer of the atmosphere that forms during cold nights. These particles rapidly discharge when bursts of material from the sun slam into Earth, producing clapping sounds and other noises, the team reported on June 22 at the Baltic-Nordic Acoustic Meeting in Stockholm, Sweden.
Previously, one of the leading theories for aurora noise suggested that tree needles or pine cones may be involved. During geomagnetic storms, the atmosphere can hold abnormally high electric fields, creating a difference in charge between the air and objects on the ground.
Those sounds manifest so near to your ears and so often that the level of noise would be harmful without these muscles. In extremely rare cases, some people can control one of these muscles, the tensor tympani, and produce that rumble at will. In other circumstances, a condition called tonic tensor tympani syndrome (TTTS) will cause people to suffer from tensor tympani muscle spasms. Individuals dealing with tinnitus or hyperacusis, which is a sensitivity to specific frequencies of sound, frequently experience TTTS.
The only noise you should hear from your TV or Odyssey Ark gaming screen is the sound of whatever you're watching. If you hear a cracking or popping noise, it could be due to temperature changes. A buzzing, crackling, or humming noise could be caused by electrical feedback. Arranging the cables and making sure the TV has good ventilation will keep it quiet.
This noise is simply the result of the mechanical contraction and expansion of certain parts inside your TV. This noise may be heard during playback, up to one hour after powering off, or when powering on the TV from the cold. Please be aware that this symptom is perfectly normal and cannot be remedied by Sony.
If a loud buzzing, vibrating, or popping noise is coming from your air conditioning system, it often means you have an electrical issue. Electrical issues can be dangerous and need to be handled by a trusted HVAC technician.
Fan Motor: If the problem is in your fan motor, you will hear a screeching noise the entire time your AC is running. A fan belt may have become loose, or an AC technician will need to replace the fan motor.
On a recent long-haul flight on an A330, at various points during the flight a strange crackling-type noise could be heard through the aircraft. It first happened whilst taxiing for takeoff and then subsequently every two hours or so.
I have recently flown on a China Eastern A330-200 from Shanghai to Beijing and that noise was heard around 10.000 feet both on the way up and on the way down. It sounds awful! Everybody was rather worried, including myself who, despite being a frequent flyer, had never heard that noise. At first I thought it was some fatigue issue of the aircraft skin while "inflating" as internal pressure increased. But a few days later I flew on a Cathay Pacific A330-300 from Hong Kong to Jakarta, and after hearing that noise again, I asked a flight attendant who told me it was likely ice crystals in the air conditioning tubes that form when the outside air is very humid. She said she heard it many times and it's considered normal on A330's.
That's what Richard Spalding and his team from Sandia National Laboratories in New Mexico sought to find out in a new study. After carefully testing objects that could produce sound, Spalding and his colleagues revealed that the crackling sounds may have been created through light.
Dielectric transducers often include everyday objects such as leaves, dark paint, dark clothing, and grass. Meteor onlookers who are positioned near these objects are more likely hear the crackling sound of meteors.
Loud noises from your ductwork can propagate throughout your entire home. The loud rush of air and sudden banging, popping, and knocking sounds can be unnerving. These noises are usually caused by air moving through ducts. While noisy ducts can leave you calling a technician for ductwork repair or consider replacing them with a ductless heating and cooling system, here are four common reasons why your ducts may be noisy.
If you have excessive noise coming from your ductwork, we can inspect your HVAC system for any issues and make possible adjustments to help. We are trusted throughout Portland and The Dalles for quality heating and plumbing services. Whether you need furnace repair or want a ductless HVAC system installed, you can count on Sky Heating, Air Conditioning & Plumbing. Schedule service online or call 541-275-2918 today!
Some crackling and popping is normal every time you vape. Have you noticed the way heated water bubbles and pops? The action of heating liquid and turning it into vapor can cause the same reaction in your vape device.
If the furnace within your Port Wentworth, Georgia, home is making strange noises, you might wonder which sounds are cause for concern and which are just part of normal operation. Every furnace makes some noise when it runs, but some furnace sounds indicate a problem within the system.
On 10 April 2015, the web site Latin Post shared a video purportedly featuring "strange apocalyptic sounds coming from the sky all around the world." That video comprises clips from various videos uploaded to YouTube between 2011 and 2013; and while it's impossible for us to offer a comprehensive explanation covering every clip seen in that video, we can provide a skeptical look about the alleged "apocalyptic noises" it references.
This video claims that there has been creepy strange noises around the world, many of the comments under these videos are very "world coming to an end" type comments. People are claiming they are trumpets playing. There is no scientific explanation for these noises. I just want to know it it's nonsense or not.
Unusual and unexplained noises are recorded in various locations around the world from time to time. While the specific origins of all such sounds may not yet be known, most scientific research points to natural causes such as tidal waves, methane explosions, underground earthquakes, or shifting sand dunes as explanations for these aural phenomena:
Hill suspects that earthquakes are to blame in the majority of cases. He's talking from experience; while in California's Mammoth Mountain he was surrounded by a muffled booming sound, despite feeling no shaking. On inspecting his instruments he found evidence of small earthquakes less than 4 km (2.9 miles) below the surface. Whereas sounds of deeper earthquakes may be too low for human hearing, he has calculated that judders near the surface could transmit audible noises of the cracking crust.
Although it is likely that "strange apocalyptic" booming sounds seemingly issuing from the sky have an earthly origin, USGS scientist David Hill said that it's also possible some of these noises originate from above:
At the 4:45 mark in the above-displayed video, a clip purportedly taken in Alberta, Canada, begins to play and (like all of the other clips in this video) features a strange and seemingly unexplainable noise. But this section of the video is unique in having a definitive explanation: YouTube user DangleSnipeCelly08 admitted that the clip she uploaded on 14 January 2012 was a hoax:
I made the video by taking out my iPhone and merely video recorded my balcony view while holding my laptop right behind it, while my laptop played (another video featuring strange sounds) in the background. Took less than a minute to do this.
Even if the majority of clips in the video shared by Latin Post do not feature "apocalyptic noises" coming from the sky, the world is not void of unexplainable noises. The National Oceanic and Atmospheric Administration (NOAA) still don't know where the whistle over the Pacific Ocean originates, researchers are still unsure of what causes a mysterious "humming" noise heard by many people in Britain, and the USGS still hasn't identified a cause for "skyquakes" booms.
One of the most famous and powerful underwater sound events, known as Bloop, was recorded by the U.S. National Oceanic and Atmospheric Administration (NOAA) in 1997. The Bloop event lasted for about 1 minute and rose in frequency from a low rumble. It was detected by underwater microphones more than 3,000 miles (5,000 kilometers) away and was much louder than the noises made by any known animal.
Several other distinctive underwater sound events have been identified and named by NOAA: a weird cooing sound dubbed "Julia" that was likely caused by an iceberg running into the seafloor, an event known as "Train" (because it sounded like train wheels against a track) that scientists think likely originated in Antarctica's Ross Sea, and a scratchy noise dubbed "Upsweep," which likely originates in the Pacific and has been picked up by hydrophones seasonally since 1991.
Most of the noises recorded by the scientists are just a single fish repeating the same call over and over. But, when two or more fish of the same kind can hear each other, often over a large distance underwater, they began to overlap their calls in a synchronous pattern. The researchers noted that sound plays an important role in many fish behaviors, such as breeding, feeding and territorial disputes. 2b1af7f3a8