Listen to article: Your browser does not support the audio element. Can you imagine how sound propagates and is perceived? What are the limits placed on the sound information channel [...]
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Let's face it – we have a big problem. And with big, I mean global. If you visit our Blog regularly or only sporadically, then you know for sure that [...]
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Although aerial military attacks had taken place in various forms since the Middle Ages, most often in the form of flammable flying kites, they became a standard tactical operation only [...]
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We all know that. "Is there sound in space?" A seemingly simple question that is harder to answer. And sometimes, even the seemingly full answer hides unexpected and surprising findings. [...]
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It is not as easy as 1, 2, 3 – but rather as hard as 3, 2, 1. The main goal of an earthquake early warning is to gain response [...]
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We all know very well that despite the list below, the sounds of Telegrafia's electronic sirens are at the top of the list. After all, who would dare and say [...]
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Do you know what to do when you hear a blaring siren? Do you know what the different sounds mean? This article gives you a brief overview of how to [...]
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Nowadays, the electromechanical sirens have their well-deserved place in museums and should be remembered it as a result of cleverness of our predecessors. Their use is hardly ever conceivable in […]
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Evacuation means leaving an area, moving away from a place, mostly to somewhere safe. For various reasons, this can be a workplace or building evacuation or a large-scale evacuation of a city or [...]
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Water as one of the natural elements and basis for life on Earth. Water as the primary need of man. Water as a gift to all living creatures. Or water [...]
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