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Fan-less cooling solution for laptops up to 40W launched(www.tomshardware.com)

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Avieshek@lemmy.world
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Device uses movement of ions to generate airflow without any moving parts like in iPads and MacBook Air.

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Da Bald Eagul@feddit.nl
69 points

Bladeless Dyson’s have the fans hidden, as far as I know. But they still have a bladed fan in there.

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ryannathans@aussie.zone
-14 points

Yes but they generate more airflow than the fan alone can

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splinter@lemm.ee
26 points

They do not. For a given power input they produce less airflow at lower velocity than a regular fan. They’re a complete scam.

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ryannathans@aussie.zone
-1 points

Citation needed

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lnxtx (xe/xem/xyr)@feddit.nl
0 points

I think you are talking about the Coandă effect.

Also:
BOLTR: DYSON HAIR DRYER. Is is WORTH the MONEY?

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ryannathans@aussie.zone
0 points

I believe it’s called entrainment which is different?

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hOrni@lemmy.world
25 points

I recently watched some YouTube video that debunked that claim. They are basically pointless.

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ryannathans@aussie.zone
-19 points

Not a dyson

Not a proper test, air volume not measured - only speed. The point is to not have fast air so this only confirms the concept works

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Evil_Shrubbery@lemm.ee
9 points

They literally generate as much as that small fan in the case can generate.

With the aerodynamics of the case it’s just a matter of converting higher pressure into lower pressure with higher (& a bit more laminated) airflow.

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