Efecte Tyndall
https://www.youtube.com/watch?v=aqrwuQTgNT4
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https://www.youtube.com/watch?v=D-drejUDMjs&ab_channel=HugoPolo
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https://www.youtube.com/watch?v=tHT3obWjaOU&list=PLLh-Vmk5XQ2yvrrxitYJZpwnR1Wf8UdU9&index=40