Matt L
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Registered: 17th Apr 06
User status: Offline
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which way is quicker to empty a 2lt bottle of water?
tip it directly up causing emptying to briefly stop every few seconds while air passes back into the bottle
or
slowy tilt the bottle so that the maximum amount of water can exit without it stopping to 'suck air back in' so to speak.
answers on a postcard please
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sc0ott
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Registered: 16th Feb 09
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tilt
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Behr
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Registered: 5th Feb 07
Location: Hemel Hempstead
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tilt or swirl the bottle this works realy well
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bigboykarl
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Registered: 19th May 09
Location: South Yorkshire
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stick a long straw in and tip it directly up
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Fro
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Registered: 20th Jun 06
Location: Rainham, Essex Drives: A3 2.0TDi Sport
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quote: Originally posted by bigboykarl
stick a long straw in and tip it directly up
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Matt L
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Registered: 17th Apr 06
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quote: Originally posted by bigboykarl
stick a long straw in and tip it directly up
wouldnt that be the same speed as tilting?
(use this method when drinking tho )
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Tommy
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Registered: 24th Aug 00
Location: Essex, Colchester
User status: Offline
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Tip and squeeze
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Fro
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Registered: 20th Jun 06
Location: Rainham, Essex Drives: A3 2.0TDi Sport
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quote: Originally posted by Matt L
quote: Originally posted by bigboykarl
stick a long straw in and tip it directly up
wouldnt that be the same speed as tilting?
(use this method when drinking tho )
Same, downing WKD bottles to look cool is where it's at
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jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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cut the bottom off the bottle
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Aaron
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Registered: 9th Aug 04
Location: Cottingham, East Riding
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Cut the bottle in half with a big fuck off knife...that should work pretty well...
...oh, i see what you're doing
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bigboykarl
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Registered: 19th May 09
Location: South Yorkshire
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smash the bottle over somebodys head ...instant spill
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ShEp
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Registered: 9th Aug 05
Location: Dingwall, Highland
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quote: Originally posted by fro-dizzle
quote: Originally posted by bigboykarl
stick a long straw in and tip it directly up
only works with glass
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C2RL R
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Registered: 28th Mar 02
Location: Redcliffe, QLD
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what would happen if you tried both ways on a conveyor belt?
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Matt L
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Registered: 17th Apr 06
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quote: Originally posted by C2RL R
what would happen if you tried both ways on a conveyor belt?
water wouldnt move it would defy gravity and stay in the bottle.
shep - seriously
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Fro
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Registered: 20th Jun 06
Location: Rainham, Essex Drives: A3 2.0TDi Sport
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quote: Originally posted by ShEp
quote: Originally posted by fro-dizzle
quote: Originally posted by bigboykarl
stick a long straw in and tip it directly up
only works with glass
He didn't specify the material of the bottle
In all seriousness though thats quite interesting to know
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Generation
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Registered: 7th Jul 09
Location: Essex
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Why does it only work with glass? never heard that before, but then again never tried on plastic
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Tomnova16
Premium Member
Registered: 21st Jan 06
Location: Gerrards Cross Drives: Porsche 911
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its to do with the air up the straw to replace where the fluid was so would work on plastic too surely
http://www.lemass.co.uk/ for all your automotive/bodyshop needs
Located in Chalfont st Peter
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Kurt
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Registered: 23rd Oct 05
Location: Hi
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Tilt and twist
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dean101287
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Registered: 22nd Jul 07
Location: Cardiff
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quote: Originally posted by Tomnova16
its to do with the air up the straw to replace where the fluid was so would work on plastic too surely
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Ian
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Registered: 28th Aug 99
Location: Liverpool
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quote: Originally posted by Matt L
the maximum amount of water can exit without it stopping to 'suck air back in'
It does suck it back in, it just does it more efficiently using the hole in the bottle for both purposes simultaneously.
My first thoughts are that tilt is better than tip, just because with tip you have the water which has to overcome inertia to move, then it moves, then the pressure decreases inside the bottle which causes the bottle to deform and also the water to become less inclined to flow, until the pressure overcomes the combination of gravity and the viscosity of the water and the water stops allowing air to enter, then once it has the whole process has to start again.
Just sounds a whole load easier to do it without any of that fuss.
Think about if you drew a graph of water flow over time. The tip graph would probably look comparable to an absolute sine wave of some sort, which due to the acceleration/deceleration of the water has a lower mean average than tilt which would be basically a straight line.
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Ian
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Registered: 28th Aug 99
Location: Liverpool
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quote: Originally posted by Generation
Why does it only work with glass? never heard that before, but then again never tried on plastic
It only works if the bottle doesn't deform, which glass doesn't and which plastic might.
If the bottle deforms, there's no drop in pressure to suck on the straw.
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jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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Ian i think i understand maybe half of that
[Edited on 05-03-2010 by jibjob]
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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best of siphoning it
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Generation
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Registered: 7th Jul 09
Location: Essex
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quote: Originally posted by Ian
quote: Originally posted by Generation
Why does it only work with glass? never heard that before, but then again never tried on plastic
It only works if the bottle doesn't deform, which glass doesn't and which plastic might.
If the bottle deforms, there's no drop in pressure to suck on the straw.
Oh so alot depends on thickness of then bottle then, as its less likly to deform
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sand-eel
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Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
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You have to tip it fully over and swirl the water round, it comes out pretty fast then.
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