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 ...

Jan 07, 2013
5 / 5 (2) 0

Study explains the mystery of ball lightning

(Phys.org)—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 ...

Oct 12, 2012
4.4 / 5 (30) 11 | with audio podcast