Emily2094
Emily2094 Emily2094
  • 21-06-2018
  • Physics
contestada

What could serve as ballast for a balloon? Help pls...thx

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ladareyencraig2
ladareyencraig2 ladareyencraig2
  • 21-06-2018
With the advent of the plastic balloon and the beginning of the unmanned ... That would lead to a more sophisticated ballast system that uses fine steel or iron
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