The Black Swan is a revolutionary unmanned aerial vehicle (UAV) that can land on short and unpaved runways and deliver goods to remote and hard-to-reach corners of the planet at 80% lower cost than current aircraft. The Bulgarian innovation was presented..
Similar to their colleagues around the world, Bulgarian scientists are searching for different solutions to the problem of the Covid-19 pandemic, as well as ways to facilitate daily lives with the pandemic. A recent Bulgarian invention..
