Hi everyone, this is the second instalment in my 'Explained by Science' series. I hope you find this video beneficial, if so, feel free to give it a thumbs up! Drop a comment down below if their is anything you weren't to sure on, and hit the subscribe button if you want to see more!
Thanks for watching,
Sam
Music by Chuki: https://www.youtube.com/user/CHUKImusic
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