Do Balloons fly?

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Article #3973

#3973

From: e92_anh
Date: Thu, 05 Nov 1992 13:03

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This will probably sound like a silly question to a lot of you, but WHY
does a helium-filled balloon rise upward? Is it because of the
difference in air-pressure at the balloon's top and bottom, causing the
resulting force to press it upward?

Thus, consider this: If the air surrounding the balloon had exactly the
same density on all sides, then the balloon would not move (I think).

So, is my airpressure-theory correct? I'd very much like to know!

			-Andre' Heinonen, Royal Institute of Technology, Sweden

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From: e92_anh@vaxkab.lne.kth.se
Newsgroups: sci.physics
Subject: Do Balloons fly?
Message-ID: <1992Nov5.130316.28438@kth.se>
Date: 5 Nov 92 13:03:16 GMT
References: <9211021802.AA29403@anubis.network.com> <1992Nov3.175155.27867@impmh.uucp>
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