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In this unusual episode, we will talk about black boxes, or flight recorders, which are a source of information about the causes of aircraft crashes and more. If you liked the episode, we invite you to like our Facebook page: / rselektronika If you have any suggestions for topics for the next episodes, send them to: [email protected] We also invite you to our second channel on audio - Noise Reduction / reduktorszumu We invite you to the website http://reduktorszumu.cupsell.pl to buy T-shirts and gadgets with the Noise Reduction logo. In this way, you can contribute to the development of our channel.