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    Why are there tiny holes in the ceilings of cars?

    Question #116042. Asked by star_gazer. (Jul 16 10 5:42 PM)


    looney_tunes

    		I can't locate an online reference for this, but it appears in a high-school Physics text as a practical example of acoustic engineering. The small holes mean the fabric has a greater capacity to absorb vibrational noises while the car is operating.

    Jul 17 10, 6:19 AM
    star_gazer

    		Early today, I checked the ceiling of my car ('97 Camry), and it didn't have any little holes. So this is the case with only some cars.

    looney_tunes is on target with his answer; the holes help to absorb sound. These holes can also be seen in the ceiling of many schools and offices.

    This is a photo of car visors that have the holes that we speak of.

    http://www.automobiletrim.com/images/headlining/perforated-headlining.jpg

    Jul 17 10, 11:11 AM

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