quote:
"And people actually say that, because it's a constant stream, it's much more cooling - I don't know whether technically it's more cooling but it feels like it, apparently."
How does that work then?.,.... Air doesnt just get up and move acorss the room by itself!
must create warm fron't and cold fronts for a difference in air pressure lol
hmm, be interested to see how this works
Air Conditioning can heat and cool so take out the ac and you have no heating in many cases, so you would put in a traditional heating system along
side the new fans - but gas heating is not as enviromentally freindly compared to ac so kinda defeats the object.
Also does he not know that the naturally ventilated building concept never really works - if your in an office and you open the windows you get
traffic fumes and noise coming in.
oh and warm air too!
He's not thought it through!!
[Edited on 13/10/09 by big-vee-twin]
link to a critical review. It does have blades, they say, but they are hidden. I think you can pick up from the tone that they don't like it much.
quote:
Originally posted by tegwin
How does that work then?.,.... Air doesnt just get up and move acorss the room by itself!
Well according to the mirror he stuck is face into it..
linky
The mirror probably has the best explanation on how it works, it's just entrainment, same as a normal fan but without rotation, quite cleaver..
i.e. a fast moving stream of air en-training the rest of the flow.. I doubt it much more efficient than a normal fan..
Dan
And here the Telegraph are more objective and have more description of how it works.
Agh... clever concept...
One flaw though...
Every single dyson product to date has been stupidly noisy..... and moving air using a small high speed fan in the base and then forcing it out of a
narrow hole... is going to be equally as noisy
Slow spinning and quiet large diameter fan for me please
I'll be looking out for that one John Lewis, bound to have one on show..
Dan
quote:
Originally posted by smart51
And here the Telegraph are more objective and have more description of how it works.
Air amplifiers like this are nothing new... In fact some were used on scrapheap challenge this year I believe...
James
nothing new here
http://www.arizonavortex.com/air-amplifier/
Can’t quite understand the phenomenal price for it tbh and an office fan these days isn’t dangerous due to the cleaver invention of a guard round the blades…
The Dyson hand driers are good - they really do dry your hands in a few seconds.
Quite amusing to watch the people who don't know what you're supposed to do with them...
I don't really like our Dyson vacuum, it is heavy, noisy and overengineered. Presumably it has a similar power requirement to a regular fan? That is a lot of litres of air - any ideas what that would be on the Beaufort scale?? - sorry boss, I could't work as it was force 4 in here....
quote:
Originally posted by David Jenkins
The Dyson hand driers are good - they really do dry your hands in a few seconds.
Quite amusing to watch the people who don't know what you're supposed to do with them...
kind of thing I'd expect a tie to vanish into and throttle the user and the things still works just as good as the day we bought it. Is louder than most vacs admittedly. So imagine getting one of these to work in reverse and suddenly your wind farms no longer chop migrating birds to bits...
They just mince them in the base
quote:
Originally posted by David Jenkins
The Dyson hand driers are good - they really do dry your hands in a few seconds.
If its like most other dyson products itl just fall apart or just stop working!!
quote:
"A fan with blades chops up the air and sends sort of slices of cake, blocks of air, at you so you feel a buffeting, a turbulent buffeting, when it hits you and it's not really very pleasant," he said.
I never thought of using my desk fan to slice cake. That would speed things up at the end of kid's parties!!
Saw something like this being used to cool F1 drivers whilst sitting in the car in the pits.
A small (4 inch) ring with an air line attached.
Can't find any pictures, though.
The video responses are with the fan not doing anything arn't they?? Not hair moving - why don't they switch it on???.....
Mr. Dyson's cleverness lies in the fact that he tarts up existing industrial technology, and makes it pretty for house wives.
His bagless vacuum technology has been used in timber yards for over sixty years, on a much bigger scale.
quote:
Originally posted by Mr Whippy
Can’t quite understand the phenomenal price for it tbh and an office fan these days isn’t dangerous due to the cleaver invention of a guard round the blades…
quote:
Originally posted by Ninehigh
Office fans aren't dangerous even without the guards, I've stopped one with my tongue!