Air density with temperature. Helium balloon.
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Added: 1 year ago
From: mopatin
Views: 3,324
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  • awesome video i am doing science project so i am using it

    jiwonlee1234 1 month ago 2

  • @jiwonlee1234 I am glad of that!.

    mopatin 1 month ago

  • lovely demo. 

    WorldStove 1 year ago

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