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Dyson bladeless fan: how it works


$329.00 at Amazon. I think I will wait until Wal-Mart starts selling them. Then they will be $25.00. :D

I would like to see him show the airflow with a smoke test.
(No not the kind of smoke test we perform on radios every day).
 
Kind of neat in a gimmicky way. Just uses a brushless electric motor to pull off it's magic.
 
Kind of neat in a gimmicky way. Just uses a brushless electric motor to pull off it's magic.

And yet it uses an impeller which is just another version on the bladed fan he despises and which is just disguised in a fancy case which serves a dual purpose, 1 a eye pleasing container for the fan, 2 a baffle which hides the air streams original intake.

AND it is not practical for anything other than channeling an air stream and when used to kool you well then you would have to stick your head in it as he suggests at one point in the first video.
 
AND it is not practical for anything other than channeling an air stream and when used to kool you well then you would have to stick your head in it as he suggests at one point in the first video.


That's not what he said in the video. He said you could stick your hand or even your head into it as he was demonstrating how safe it was due to not having exposed rotating parts.As for usefulness, well it's a fan. The video was neat in that it showed several well placed fans set up to direct a balloon from one to the other. In reality it's just a fan and would still blow air like any other fan that cools you off.

The basic concept of his using a small amount of air to draw in large amounts of air is not new. Rapid inflation systems like airplane emergency exit slide ramps inflate the same way. They use a small chemical charge that burns inside a funnel-like nozzle that greatly increases the airflow into the slide.
 
That's not what he said in the video. He said you could stick your hand or even your head into it as he was demonstrating how safe it was due to not having exposed rotating parts.As for usefulness, well it's a fan. The video was neat in that it showed several well placed fans set up to direct a balloon from one to the other. In reality it's just a fan and would still blow air like any other fan that cools you off.

The basic concept of his using a small amount of air to draw in large amounts of air is not new. Rapid inflation systems like airplane emergency exit slide ramps inflate the same way. They use a small chemical charge that burns inside a funnel-like nozzle that greatly increases the airflow into the slide.

I know what he meant but you failed to read my sarcasm, point being it's very directional and channels it's flow in a tight pattern which is not practical unless it's on a rotating base as pictured in his demonstration for cooling scenarios whereas a rotating blade fan directs air willy nilly in a not so compressed pattern.

I've dealt with directional air flow in animal housing cooling for a living so this is not my first rodeo.
 
I know what he meant but you failed to read my sarcasm, point being it's very directional and channels it's flow in a tight pattern which is not practical unless it's on a rotating base as pictured in his demonstration for cooling scenarios whereas a rotating blade fan directs air willy nilly in a not so compressed pattern.

I've dealt with directional air flow in animal housing cooling for a living so this is not my first rodeo.


You're right, stupid me. I forgot who I was dealing with.:D I'll try not to let it happen again. :laugh:
 
i have seen and felt the airflow from this fan at a retail store .it does move a good amount of air .but it in no way outblows a high velocity blade fan .if you want whisper quiet then yes ,this will get you that.
but i would never pay 300.00 for it .
maybe the government will buy them,they love wasting our money.
 
im the same way . i have to have that hummmm of the fan at night , even in the winter time i run a fan and just point it in a corner . if i dont every little noise wakes me up or if its dead quiet i get a ringing in my ears . probably from my car stereo days .....
 
i,m with you guys i run a fan pretty much the whole time i am home .day/night.i unplug it when i am not home .i would have a hard time sleeping without one.
my fan only costs 50 bucks...lol.....i use a patton.
 
I like it quiet when I sleep. I even hate to turn the air conditioner on when I work night shift and have to sleep during the day but it's the lesser of two evils considering the heat. I'm just used to hearing nothing at night except for the occasional rustle of leaves on the trees or the very rare vehicle go by the house. I live just outside of town, population of which is about 1200, so it gets nice and quiet which is the way I like it. Before the kids were born I could sleep thru a war but after reprogramming my brain to sleep while listening for babies waking up almost anything wakens me. I would have thought now that they are 12 and 13 things would have reverted back to the way they were but no such luck. :mad:
 

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