Beyond the Surface: Innovation Underwater and Musical Legacy

This chapter explores a groundbreaking underwater navigation system using low-frequency sounds, advancing fish tracking technology, and innovative underwater robots for ecological research. It also highlights the vibrant musical evolution in Brazil during the 1970s, shaped by political repression and a tax incentive that spurred creativity. The interplay of sound technology and the cultural impact of Brazilian music underscores a legacy of resilience and innovation amidst challenges.