Koo-koo, kookaburra!

How was Wi-Fi invented? Why did they grow a mould room at the institute? Who gifted people the joy of hearing? And what does this have to do with shells on the beach? The second season of the podcast "Koo-koo, kookaburra!" is all about Australian inventions. In the first season we talked about how Russia and Australia differ: can an emu catch a bus, do bears eat butterflies, what is a didgeridoo and what to cook from nettles. Audio in Russian only.