Would this work: (Turn your bike into a horn)

Consider the function of a siren disk:
"When the disk is spun in front of a jet of air, the holes modulate the air-jet which produces a sound"
Ref: https://en.wikipedia.org/wiki/Siren_disk

It's the same idea shaking your finger around your mouth as you blow.

Now consider this diagram in which a circular disc is inserted into a bike-wheel that's placed next to a fan.

Question

Would this work: (Turn your bike into a horn)

Consider the function of a siren disk:
"When the disk is spun in front of a jet of air, the holes modulate the air-jet which produces a sound"
Ref: https://en.wikipedia.org/wiki/Siren_disk

It's the same idea shaking your finger around your mouth as you blow.

Now consider this diagram in which a circular disc is inserted into a bike-wheel that's placed next to a fan.

mhchen · Answer

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The fan shoots out a jet of air which gets disrupted by your disk (cardboard punctured with holes), thus creating noise similar to that of a tornado sirens.

Will it work? Or how loud will it get? That's what I want to know.

mhchen · Answer

Actually...why don't I just attach the siren disk to the fan itself. It'd be even faster...

It'd be even better if we attach it to a centrifuge. Is there a way to make homemade centrifuges...

mhchen · Answer

Consider
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Am I a genius or what

Gdeinward · Answer

I dont know what makes you a genius, that drawing of Arnold Schwarzenegger, or the contraption

justjm · Answer

Back in the days when I was probably in middle school, I would put an empty water bottle in between my rear wheel and body of the bike to produce a sound similar to a motorcycle. I would ride around the neighborhood and to school every day making a loud noise that people blocks away could hear.

Maybe incorporate that idea into your apparatus?

Gdeinward · Answer

also include playing cards for that cool sound

justjm · Answer

Done that before as well and I can agree.