What is Uncertainty principle, quantum superposition, is Schrödinger's cat alive, how can particles be in several places at once and can one see individual quanta with the naked eye?
If you do not know anything about quantum physics, but want to understand, this video is for you!

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Useful links:
Funny and provocatively about quanta: https://quantuz.livejournal.com/1232....
Camera that observes individual photons: http://gearmix.ru/archives/12770
A person can see a separate photon: https://chrdk.ru/news/chelovecheskiy_...
Vavilov's experiment:    • Фотоэффект, 1979  
About the uncertainty ratio:    • Алексей Акимов — Квантовая неопределе...  
Three-slit experiment: https://nplus1.ru/news/2017/01/18/non...
About quantum superposition: https://22century.ru/popular-science-...
About everything on Habr: https://habr.com/post/368943/
About probabilities in quantum physics: http://314159.ru/voevodskiy/voevodski...