News tagged with air holes

Noise protection: Multifunctional and aesthetical

Noise abatement is growing in importance, thus, the demand for better acoustic building components raises. Scientists are developing new solutions: aesthetically good looking and flexibly applicable microperforated sound ...

dateJan 07, 2013 in Engineering
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Study explains the mystery of ball lightning

(—Sightings of ball lightning have been made for centuries around the world – usually the size of a grapefruit and lasting up to twenty seconds – but no explanation of how it occurs has been universally accepted ...

dateOct 12, 2012 in General Physics
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