FONTI:
http://www.cracked.com/blog/the-incredible-stupid-gruesome-story-first-jet-pack/
https://www.smithsonianmag.com/smithsonian-institution/ill-fated-history-jetpack-180955294/
https://www.popularmechanics.com/flight/g1267/a-brief-history-of-the-jetpack/?slide=1
https://www.theguardian.com/technology/2018/may/15/jetpacks-jet-propulsion-flying-to-work
https://science.howstuffworks.com/transport/engines-equipment/jet-pack2.htm
https://gizmodo.com/real-bloody-flying-nazi-soldiers-with-jet-packs-5524604
https://www.theverge.com/2011/11/3/2504531/jetpack-history-future-passed
https://news.google.com/newspapers?nid=2202&dat=19870410&id=38UlAAAAIBAJ&sjid=iPwFAAAAIBAJ&pg=6416%2C2165740
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