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Old 06 March 2017, 17:54   #11
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I use these - they are great and keep drink or soup hot well over 24 hours

Thermos Hercules Floating Flask 1.0L: Official UK Thermos Shop: High Performance Flasks
+1 brilliant flask, used it for work etc, keeps coffe hot for 24+ hrs
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Old 07 March 2017, 08:13   #12
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I think thermos seem to be the best from your replys without emptying my wallet
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Old 07 March 2017, 08:16   #13
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Which all raises a bit of a random question..... Does a vacuum float?
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Old 07 March 2017, 08:27   #14
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Which all raises a bit of a random question..... Does a vacuum float?
in this case I would say yes as its the displacement of the flask that makes it float
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Old 07 March 2017, 08:32   #15
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in this case I would say yes as its the displacement of the flask that makes it float


Yeah, I'd figured that bit out re. The flask, it should actually float "better" as it doesn't have the weight of air in the vacuum space. But I was musing over in ma heed (too much time on my hands at the mo) if you could produce a "bubble" of vacuum & immerse it in water, what would do?
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Old 07 March 2017, 08:35   #16
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Does a vacuum float?
They can do

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Old 07 March 2017, 08:43   #17
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if you could produce a "bubble" of vacuum
Oh I geddit now - I misunderstood you. You meant a "pure" vacuum - not the sort with impurities in it. Be careful messing with a vacuum - it's the opposite of the stuff that gets everywhere. Consider PPE. Maybe a vacuum suit...

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Old 07 March 2017, 09:21   #18
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Oh I geddit now - I misunderstood you. You meant a "pure" vacuum - not the sort with impurities in it. Be careful messing with a vacuum - it's the opposite of the stuff that gets everywhere. Consider PPE. Maybe a vacuum suit...



You've obviously more time on your hands than I have.

I wonder how he empties the bag......................
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