On 16/11/2010 05:05, Sean Breheny wrote:
> Hi Lyle,
>
> Wikipedia seems to think that an "air amplifier" is a kind of
> pneumatic piloted valve/fluid amplifier or pneumatic equivalent of a
> transistor - it has two input streams (a high pressure, high volume
> one and a low pressure, low volume one) and the low pressure one can
> control the flow of the high pressure one. I don't see how that
> relates to what you describe. Do you have an actual brand name where I
> could get more info about the kind of air amplifiers you used?
>
> Sean
>
Indeed one mechanical record player allowed a venue to only hire a=20
singer. The Record had "Orchestral track". It used a compressor and=20
valve/membrane driven by pickup. By all acounts was very loud.

The Dyson has small fans in base. To move the same volume of air a small=20
fan is noisier than a big fan. The Dyson simply hides the blades of the=20
fan in the box below.


Perhaps it can have a more directed airflow. Logic says it can't move as=20
much air, never mind more, than a single large fan with same energy input.

It's simply a "prettier" fan?

Obviously the principle is good to move gasses or fluids where you don't=20
want the blade in it, like a very dusty airflow as the fan can take=20
clean air.
--=20
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