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Joined 3 years ago
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Cake day: June 20th, 2023

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  • This is just a product of the age verification bullshit.

    Some companies are asking to upload drivers licences, others are asking for banking info. All being marketed as a benefit, and getting a checkmark beside your name.

    And here almost every week theres a email from some company getting hacked and personal info being accessed/stolen.

    I had recently signed back for a service with a company I have not done business with for 20 years, they somehow still had my old account info and address details. I was and still am pissed.




  • NarrativeBear@lemmy.worldtoLemmy Shitpost@lemmy.worldthe trojan fan
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    10 days ago

    Its true there is a fan in the base of all bladeless fans, but the fan is smaller then traditional fan designs and moves the same if not more air then traditional fans.

    Air is pulled in through the base and forced through a thin slit. This fast stream of air creates an area of low pressure, drawing in and amplifying surrounding air behind the slits.

    Because air “sticks” to itself, when you get some air moving (by breathing out, for example), the initial bit of air that you move “drags” some air with it from beside and behind. This is what Dyson calls “air multiplier technology”.

    Dyson uses this property of air to claim that they only have to move a fraction of air (with the fan in the base) of all the air that blows past you.

    Here is a example of how this works, and how you can use one breath to fill a large bag.

    https://www.youtube.com/watch?v=rAAelB7nN14

    Here is a image of the multiplier effect, from the original intake of air at the bottom. You can see the air is multiplied from behind and infront of the fan.

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