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KB2VXA > INFO 29.07.02 04:35l 39 Lines 1167 Bytes #999 (0) @ WW
BID : 53146_WT3V
Read: DB0FHN GUEST
Subj: Re: ZL1UIC > WEOTS, buoyancy
Path: DB0FHN<DB0ZWI<DB0HOT<OK0PBX<OK0PHL<OK0PPR<OK0PPL<RZ6HXA<WA7V<N7FSP<
KB6LE<KB6LE<W0RLI<KA7AGH<N7QDN<N7QDN<K1UOL<K1UOL<WA2PNU<KB2VLX<WB2QJA<
KC2COJ<WT3V
Sent: 020728/1626Z @:WT3V.#JS.NJ.USA.NOAM #:53146 [Lakehurst] $:53146_WT3V
From: KB2VXA@WT3V.#JS.NJ.USA.NOAM
To : INFO@WW
Hello Allan and submariners in a jar,
Having performed the demonstration using the inverted bottle :submarine,
I should explain the physics behind it. When the pressure in the jar is
increased, it forces water into the inverted bottle, compressing the air
inside, increasing it's density. With the air now having greater density
than the water (which doesn't compress) surrounding it, the bottle sinks.
Since water doesn't compress it makes for a safer medium for hydrostatic
pressure testing when the vessel under test finally bursts.
The fact that the air in the ballast tanks of a submarine will compress
limits it's maximum depth, aside from the obvious fact of possible hull
implosion. This is why gasoline is used instead of air in deep sea
submersibles like the famous Alvin, gasoline doesn't compress and change
buoyancy.
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LID: Wants to work ground wave, buries antenna.
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73 de Warren, KB2VXA
e-mail: kb2vxa@juno.com
Message timed: 16:28 on 28 Jul 02 UTC
[ Received via HF CLOVER at KB6LE ]
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