History
July 1: SOS danger signals are approved and most commonly used in the world
Many people believe that SOS is an acronym for some rescue questions like
Emergency Signal
Browse ScienceInfo articles and explainers related to Emergency Signal.
Topic archive
Articles about Emergency Signal
2 published items.
New technology
Lifejackets automatically send emergency signals
New Technology Research Center (Petech) has researched and successfully designed life jackets on the sea. On the outside, life jackets look like life jackets