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  1. www.wikihow.com › Car-Makes-Noise-when-StartingCar Makes Noise When Starting then Goes Away: 8 Causes - wikiHow

    Aug 28, 2024 · Reduce engine noise by soundproofing your hood. Consider soundproofing your hood if you're bothered by engine noise. Apply automotive-grade sound-deadening foam or a pre-cut hood liner under your car's hood. These materials absorb vibrations and dampen engine noise for a quieter ride.

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  2. www.popsci.com › story › diyWhat your computer's worst noises actually mean - Popular Science

    Aug 30, 2020 · When your computer's making a buzzing noise, a rattling noise, a grinding noise, or even an aggressive fan noise, check this guide to see what it may mean.

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  4. en.wikipedia.org › wiki › Noise_pollutionNoise pollution - Wikipedia

    Noise pollution, or sound pollution, is the propagation of noise or sound with ranging impacts on the activity of human or animal life, most of which are harmful to a degree. The source of outdoor noise worldwide is mainly caused by machines, transport and propagation systems.

  5. byjus.com › physics › loudness-of-soundPitch and Loudness of Sound - BYJU'S

    If the frequency of vibration is higher, we say that the sound is shrill and has a high pitch. On the other hand, if the sound is said to have a lower pitch then it has a lower frequency of vibration. A bird produces a high-pitched sound whereas roaring of a lion is a low-pitched sound.

  6. www.nationalgeographic.org › encyclopedia › noiseNoise Pollution - National Geographic Society

    Mar 6, 2024 · Noise pollution can cause health problems for people and wildlife, both on land and in the sea. From traffic noise to rock concerts, loud or inescapable sounds can cause hearing loss, stress, and high blood pressure.

  7. www.scienceabc.com › nature › why-is-water-loudestBoiling Water Science: Why Does Water Make Noise Before It Boils?

    Oct 19, 2023 · If you closely observe water while it boils, you will notice that when you start boiling, there is little to no noise, but as heating continues and the temperature keeps increasing, the noise becomes more discernible. It keeps getting louder, along with a rise in temperature.

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  9. byjus.com › physics › noise-pollution-preventionNoise Pollution - Definition, Types, Causes, Prevention - BYJU'S

    Following are the three types of pollution: Transport Noise. Neighbourhood Noise. Industrial Noise. Transport Noise. It mainly consists of traffic noise which has increased in recent years with the increase in the number of vehicles. The increase in noise pollution leads to deafening of older people, headache, hypertension, etc. Neighbourhood Noise