So, since the Hindenburg had a rigid structure, they could have simply pumped
all the air
out of it instead of filling it with hydrogen. Much safer!
On 5/11/2011 6:29 AM, Bill Fuqua wrote:
>
> I once told a chemistry professor that if you could inflate a balloon
> with a vacuum
> it would float much better than one inflated with helium. He stated that
> vacuum inflated one would
> not float because the helium balloon floats only because helium is
> lighter than air.
> Needless to say I won the argument after some discussion of why objects
> float
> in the first place.
>
> 73
> Bill wa4lav
>
>
> At 08:59 AM 5/11/2011 -0400, you wrote:
>> "Just curious: I know you say the tube was not in the water, but would
>> an unenergized glass tube be damaged from being submerged in a flood
>> for a day or two? "
>>
>> Since the tube is in a vacuum, nothing inside will be hurt. Perhaps the
>> big issue is that a big tube like the 3-1000 will try very hard to float
>> down the river, since it will not like being under water. Sort of like the
>> Japanese fishing floats that used to wash up on the West Coast beaches. So,
>> new original stock vacuum tubes in their original boxes are likely to go
>> away during a flood.
>>
>> If the tube remains, there could be corrosion of the tube base and plate
>> cap.
>>
>> 73, Colin K7FM
>>
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>
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--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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