When did the use of sirens begin? And why are they characterized by their "disturbing" sound?
The article discusses the historical evolution of warning systems, particularly the emergence of modern sirens in light of current geopolitical tensions involving Iran and Israel.
Support for Private Solar Systems: Enriching is Right but Still Doing it Wrong
A commentary on the German government’s plan to cut feed-in tariffs for smaller solar systems, indicating potential adverse impacts despite sound arguments.
Signal Testing Conducted at 'Galerija Centrs' on Friday Morning
A routine test of the fire safety systems at 'Galerija Centrs' shopping center in Latvia caused alarm sirens to sound on Friday morning, but there was no actual threat to visitors or staff.
Score big on TVs and hosting must-haves for March Madness
This article provides tips for preparing for March Madness with suggestions for TVs, sound systems, and hosting supplies.
Will review procedures after false alarm with flight alarms in Eastern Norway
A human error during a routine test of alarm systems caused flight alarms to sound across Eastern Norway, prompting a review of procedures by authorities.
After police forces' determination, the city hall of Pirambu prohibits the use of sound systems and car audio
The city hall of Pirambu has prohibited the use of sound systems and car audio during Carnival following police directives.
Porto Velho will have an exclusive 'block' for sound systems
Porto Velho's city hall has announced an event specifically for sound trucks, called 'carnaparedão', after previously banning their use during Carnival celebrations.
City Hall publishes ordinance prohibiting the use of 'sound walls' during Carnival in Santarém
An ordinance published by the Santarém City Hall establishes rules to combat noise pollution during the official Carnival 2026 period, prohibiting the use of automotive sound systems known as 'paredão' in public spaces where Carnival events occur.
City Hall prohibits sound systems during Carnival in Porto Velho; vehicles may be towed
The City Hall of Porto Velho has banned the use of sound systems and cars with automotive sound during Carnival 2026, with violators facing towing of their vehicles.
Not just image, but also sound. The Municipal Police in Jílové near Prague is introducing a new security system
The Municipal Police in Jílové near Prague is enhancing security with new sound detection systems to complement hundreds of cameras monitoring the area.