I am the designer of The Wonder From Downunder, thanks for choosing it! I made my own manometer to test different versions . The result could probably be improved if some tape was used to seal the 2 halves together

@weatheranddarkness

2 ай бұрын

Nice job dude!

@butre.

2 ай бұрын

I've been thinking about doing exactly the same thing since he announced the new season. should've gotten on it sooner

@OldManSparkplug

2 ай бұрын

Nice work, I would love to play with one of those, is the design available anywhere?

@Platypus_Warrior

2 ай бұрын

I watch the video, read comments and I don't get it. How is The Wonder From Downunder possibly a PC fan? I feel like there should be boundaries to what dimensions are allowed. If you use as much volume as The Wonder From Downunder, then you could use 2 regular pc fans as well and cool much more.

@TheRattleSnake3145

2 ай бұрын

​@@Platypus_Warrior this is a static pressure design challenge. It was never meant to cool a PC.

Oh boy, we might end up with contraptions that are more tire pump than fan, won't we?

@ramb4ldi

2 ай бұрын

Here's to the first person to submit a piston based compressor "fan"

@austinclark3495

2 ай бұрын

@@ramb4ldi lol

@bibasik7

2 ай бұрын

3d printed air compressor go brrrr

@andie_pants

2 ай бұрын

I hope! Imagine pumping a tire with an A12X25.

@JGuraan

2 ай бұрын

PD pump go brrrr

Centrifugal compressors compressing centrifugally

@ahmadrizqiramadhan7846

2 ай бұрын

A car turbocharger

@caerxm

2 ай бұрын

@@ahmadrizqiramadhan7846 slap on a blow off and it would make stututuuu..

@KTPDAILY

21 күн бұрын

I think I found the smartest people in this chat

C major chord isn't three octaves of the same note C, it's C, plus a third, plus a fifth, so C E and G, E is the major third of the C major scale, and G is the major 5'th of the C major scale.

@stutterpunk9573

2 ай бұрын

i was gonna say, this isnt a Cmaj, its just like a coir singing the C note in various octaves, which is still cool.

@rachelnewton-john7031

2 ай бұрын

Yep, and in this the C3, E3 and G3 peaks at ~131hz, 165hz and 196hz can be seen on the frequency graph :3

@mhoop1

2 ай бұрын

Imagine connecting that to tubes of different lengths; it's essentially a new musical instrument controlled by RPM.

@Tonyface666

2 ай бұрын

Also it's only gonna be C if it spins at the right RPM. Else it'll be some other major chord with a different fundamental.

@gigaherz_

2 ай бұрын

@@mhoop1 I could swear there's some kind of instrument that works like that, kinda.

Damn, can't believe I've been watching this show for *6* seasons. Guess I'm just a... big fan.

@worldpeace1822

Ай бұрын

A fan not tested yet

@bluesirius1

Ай бұрын

I see what you did there

@enigmalfidelity

Ай бұрын

Your viewership has been ex-static Yes it is mispelled, but i need it to work 😂

The wonder from down under guy should get a job in a F1 team. He read the rules and decimated all!

@daniel_77.

2 ай бұрын

He really thought outside the box

@Tom-yc8jv

2 ай бұрын

Also, It's pronounced "Steven" NOT Stephan/Steffen/Stefan

@leonmusk1040

2 ай бұрын

Wee way to go from f1 needs variable geometry and secondary channel to increase entrainment then we'd be talking f1 more group b tech also a tiny hole from pressure side to behind wheel to balance static pressure so it runs free under variable air pressure loads :).

@DMSparky

2 ай бұрын

@@Tom-yc8jv definitely depends where you’re from a know a Stefan from Europe that’s pronounced stef-ann

@lake258

2 ай бұрын

@@Tom-yc8jv STEPAAAAAAAN

I love the wierd fans that aren't designed to be the very best. Another 0.1mm of pressure is obviously impressive for the top fans, but the ones that are supposed to look or sound cool are always my favorites Edit: ok but when it ekes out another 4.6mm that's worth celebrating. That's a season defining fan

@user-od6ih8jc7m

2 ай бұрын

Paradigmatical from down under.

If that fan is within 2 cents of C Major, I will subscribe to Milo I played a C chord along with the fan and gosh darn it, it made a C chord! lol

@haydenc2742

2 ай бұрын

He shoulda overlayed a "C" chord from a guitar next to the fan sound...this way us non-musically inclined "deaf as a post" folks would understand It did sound pretty nice...not the high pitch whine of high performance fans, but a low hum

@Inertia888

2 ай бұрын

@@haydenc2742 A pipe organ would be the closest match to the sound characteristics of the fan, that 'breathy' sound. You would want the organ notes to be played very lightly, to match the soft fan, as closely as possible. If you find a single note played on an organ and listen to it while you think about, and try to recall the sound of the 'C-Major' fan, your ears will probably notice some relative similarity in tone and feel.

@MlnscBoo

2 ай бұрын

@@haydenc2742 Guitar works fine. Search "c chord" in youtube and find the 45 second video with "C Major" in the thumbnale. Now go to :36 seconds in the C Major video and 7:35 in this video and hit play on both. TADA! it sounds pretty cool

@MlnscBoo

2 ай бұрын

@@haydenc2742 Guitar works fine lol. Search c chord in youtube and find the 45 second video with "C Major" in the thumbnail. Go 38 seconds in and pause. Now go to 7:44 in this video and pause it. Now hit play on both. TADA! pretty cool right?

@MlnscBoo

2 ай бұрын

@@haydenc2742 Guitar works fine lol. Find a C chord video on youtube and play it along with the fan at 7 minutes and 44 seconds on this video. (My comments keep getting deleted. I think it's because of the time stamps. pretty annoying)

the c major fan looked really good in the smoke test, it should get tested for airflow

@AtimatikArmy

2 ай бұрын

I thought so too!

@brandonroeder2461

2 ай бұрын

It seemed to produce the most uniform airflow.

@christopherd.winnan8701

2 ай бұрын

@EMILE12345678901 - Could it be that the airflow was being organized into vortices, as described by the theories of Viktor Schauberger

@christopherd.winnan8701

2 ай бұрын

@@brandonroeder2461 - it looks as if the flow could be focused into a reducing helix with a slightly different design. I wonder if chatgpt can analyse video frames for fluid dynamics yet?

@satibel

2 ай бұрын

@@christopherd.winnan8701 I don't think it can, but fusion360 and solidworks can afaik

Fun fact, fans are being used as speakers. Normally, in a speaker, a magnet induces vibrations onto a cone that pushes air back and forth at a specific frequency. In a rotary subwoofer, however, large, flat blades are attached to a mechanism that changes the pitch angle of the blades from positive to negative, which is actuated by a magnet just like a normal speaker. Changing the blade pitch back and forth at a frequency has the same effect as a speaker cone, but it's able to move a much larger volume of air as it spins, which makes it much louder. This technology is sometimes used in pipe organs to emulate enormous pipe lengths (80, 120, 160 ft long or more) to be able to produce notes that can be felt more than heard. Since they're so loud, though, it creates an excessive amount of noise pollution as the design requires an "infinite baffle", or venting straight outside to produce a desirable effect inside. I saw a guy on youtube make one in his house and nearly shook the walls apart as pressure increased and decreased so rapidly.

@ineverknowdoyou

2 ай бұрын

I saw the same video lol!

@Varadiio

2 ай бұрын

They've been using fans for a long time. If you look up air raid sirens you'll find some historical ones. These designs are many times more effective than speakers of equivalent size in emergency alert systems.

@goosenotmaverick1156

2 ай бұрын

​@@Varadiio I have a small 12v version of those that was designed for car type applications, and they're so neat. I want a large one, like an original. My neighbors would love me.

@pjbklk

2 ай бұрын

@@goosenotmaverick1156 where can i get one of what you have

@goosenotmaverick1156

2 ай бұрын

@@pjbklk the mini air raid siren? I'm not entirely sure, I bought a box of old car horns and it was the only modern thing in there. I will indeed go take a look when I get a chance and turn it on and annoy the neighbors, as well as look at the brand or any identifying marks on it to help you out.

8.0 WHAT!

@TheRattleSnake3145

2 ай бұрын

You're welcome !

Is the guy who designed the Wonder from Down Under the same guy who came up with the Cheater? Because this feels like "Cheater 2.0"

@Billys3D

2 ай бұрын

need a cheater v. wonder just for grins at this point

@TheRattleSnake3145

2 ай бұрын

​@@Billys3Dit would probably lose against the cheater.

@TheRattleSnake3145

2 ай бұрын

I am the designer of TWFD. I came up with a design to go up against the cheater but it didn't get picked. It was at least equal to it

@JohnWilliams-vy2gw

2 ай бұрын

Total side comment, i saw you write TWFD, and I was"what is that? " lol, never knew down under was one word, and wouldn't have included" from"! (TWDU) Damn, chatting with people from around the world is fn cool! And a damn clever fan!

@ScienceRules118

2 ай бұрын

@@TheRattleSnake3145 Depends on metric - I could see the Cheater losing on pure static pressure, as an example.

Yay i made it in, I just made what felt like it would do good, and named it what it looked like to me. Nice to see it printed out, Danijel Sawblade.

The only criticism I can offer this channel is that I need more videos. I love this stuff. I'd love to get more videos on your general 3D printing experiences.

For anyone curious about the music theory, you take a frequency (say A=440hz or 440 ocilations per second), the octave is exactly twice the frequency, so say 880hz, if you divide that into 12 segments, that is your 12 notes in western music. The C major scale uses 7 of the given notes (if i'm not mistaken) so you play the 1st note in C major, then the 3rd note in the scale, and the 5th note, and that is your C major chord. (I'm also just a nerd on the internet so take all of what i say with a grain of salt of course)

@Midnotion

2 ай бұрын

@seth6118 Small clarification; you can't just divide the frequencies between 440Hz and 880Hz evenly into 12 notes. Since the octave is an exponential scale, you have to use a logarithmic division where the frequency of each note = the frequency of the previous note * the 12th root of 2. That mathematical ideal is then usually tweaked by hand to make some chords a little more pleasing to the ear. You can google "musical temperament" for more details.

I am quite impressed on the breadth of domain specific knowledge MH commenters here have. Fluid Dynamics, Heat Transfer, Sound Engineering, 3D printing, and now Music Theory. Glad I'm here.. though I can't barely contribute anything.

Before: "3? That's impressive!" Normal entries: "Let's have some fun." Wonder from Down Under: "Hold my beer, his beer, everybody's beer."

@brianfhunter

2 ай бұрын

More like "Hold my truck full of bear."

Wow 8mm, I'm "blown away"!

@TheRattleSnake3145

2 ай бұрын

I think i may have altered the designs for static pressure comps in thw future.

gosh i love the turbo inspired fans itd be sick if someome did a entire car themed pc build using similar mechanics to how a car would actually work

OK.....WFDU is seriously impressive, well done. Awesome episode, thank you.

@TheRattleSnake3145

2 ай бұрын

Thanks!

oh boy... i've never laughed this hard on any fan showdown episode. but that 8.0 got me xD

Respect to the Wonder from down under designer! I had a great laugh when I saw how he just went all out.

As an Australian I'm glad someone did this , because I can't stop laughing.

Way to think outside the box from down under, Congrats on taking the first place so far a head.

@TheRattleSnake3145

2 ай бұрын

Thankyou!

I love the changeup of rules to get new purpose built designs, and the WFDU did an amazing job sticking to the task assigned!

WFDU looks like gigantic laptop fan

Next season you should take an heater with a radiator and look at the power use to maintain it at a specific temperature, a better fan will by drain more current from the heater and it will be a better indicator of how good a fan is overall I think 🤔

@Inertia888

2 ай бұрын

I like that idea. I think, if you add a pan of water to the heater, rest it on top of the radiator, or a wet towel, the evaporation will cool the radiator and force the heater to work harder.

@RageXBlade

Ай бұрын

No, they you're introducing error from ambient temperature and humidity (higher humidity is higher thermal mass in the air) and all sorts of other things I can't think of. Interesting idea.

@Drachenhebron

Ай бұрын

pretty much what's been covered by earlier seasons when they actually cooled a cpu

I'm at work so I won't be able to watch until later, but every time I see a new thumbnail it's so hype I can't wait and sneak to watch your videos. I love exploring the limits of what's possible.

I'm not sure which is more impressive. Getting the notes that close on the c major (although that wasn't technically a chord, it's octaves) or the sheer static pressure of the wfdu.

@Endrushmi

2 ай бұрын

It was a chord. C E G. the 4th 5th and 6th harmonics of C.

@J.PC.Designs

2 ай бұрын

@@Endrushmi But it wasn't C E G. It was C C C. It is still a chord but it's a chord of octaves. But it's not C major, I'm assuming that's what he meant to say.

@Juhid

2 ай бұрын

@@J.PC.Designs The C3, E3 and G3 peaks ~131hz, 165hz and 196hz can be seen on the frequency graph...

@graey2

2 ай бұрын

@@J.PC.Designs It was definitely C-E-G, the explanation just wasn't fully on point.

@MajorHardware Thank you for taking the time to insert the super charger clip. I literally laughed out loud at that. I needed a good laugh.

Dude is about to witness an exponential improvement competition just like what hapoened with Tetris last year

The Wonder absolutely _decimated_ the competition. Wow.

@BariumCobaltNitrog3n

Ай бұрын

Decimate-transitive verb 1 : to select by lot and kill every tenth man decimate a regiment

I feel like I have been watching this show my whole life and it is still one of my favorites. I love how you started fading the smoke test music in leading in before the footage started. I hope this can go on for decades 🤞

Another great video thanks Major Hardware!

I am so used to the music playing during the fan testing montage, that every time some other random completely unrelated video uses the same music I am like "oooh! Are we testing fans?!"

that was awesome to see the wonder, love seeing engineering just directed at the goal and smashing previous efforts

I'd like to imagine there is no smoke machine, and Major Hardware is just puffing a Subaru device.

With the WfDU, if they could mount on 2 parallel on a CPU cooler... but route the output as ducting across the side of the cooler and out the back of a PC case (rather than just the side hitting the glass) that could be a really sick way of ejecting heat out of a PC. Like the old PC exhausts of yore!

I laughed so f*n hard when you used that sound sample "What! What the F***!" Omg. Bro... Stephan has some serious engineering props. He probably actually knows how to use a fluid dynamics app.

@TheRattleSnake3145

2 ай бұрын

I didnt use any apps, just did what I thought would work.

Love the Air force decal in the back!

I experiment with various radiators for water cooling in my shop for customers "custom" builds and am always open minded when it comes to cooling. I watch this channel for inspiration and ideas and have been pleasantly surprised at the results you deliver and the wonder from down under is clever and genius in its approach. No one solution solves every problem and my own experience isn't enough. I need and appreciate channels like this so that I maintain unique approaches to my customer needs. thank you and please keep up the good work.....from all countries. Shawn Emergency PC Repair of Colorado

havn't seen your channel im my recomended in forever. figured id look you up

Wow. wonder from down under 8.0! I think we need more tests on that fan. How bad is the airflow?

@The_Keeper

2 ай бұрын

Yup. I would also like to see how good/bad it actually is at cooling.

I just want to point out that, at a certain point, cfm matters. When it comes to cooling inside the tight spaces of a pc case and heatsinks, it's important to strike a balance between static pressure and cfm. This is because not only do you have to push air through tight spaces, you also have to push enough of it fast enough to keep up with the continuously generated heat. My personal pick for best overall fan is the Angel! It easily strikes the best balance of cfm, static pressure, and dba, all without cheating by adding extra pieces or protruding out the base. Though I do love both the Dragon Wing and Devil fans as well.

Loved the slow reveal of the wonder’s output. Made it more satisfying.

yay for new episodes!

I hope I can grow old with you and this show, bring my eventual kids to your channel and share this consistently cool show with them.

First time here. This is such a great odea for a series! I may have to go back and watch them all.

What a cool idea for a series. Just stumbled upon this randomly 🔥

the "wonder from down under" missed an opportunity to have the fan be called "Blow them all away"

@TheRattleSnake3145

2 ай бұрын

Or "Static pressure eh? Hold my beer"

Now the future submissions for this season will all be turbochargers!

the PowerCap and Sawblade are really nice brown noise generators. Very soothing dark tone.

Whelp... it's now a fight for second place

You can have 6 fans for 6 different notes, and play according to desired cooling. so cool. hope to hear it.

That wonder from down under fan really blows.

The wonder from down under understood the assignment!

so the guy who made the WFDU made what it essentially a desktop-sized laptop fan. Nice. love it, tho one adjustment i'd make is have an opening on the other side as well. more spaces for air to enter, more airflow.

@ShadowManceri

2 ай бұрын

More airflow means less static pressure. It's a square function so you can't get both. Kind of defeats the point.

Omg! The audio clip during the WFDU pressure results. Lmfao! What!

This was the most interesting show down yet!

itd be crazy if someone submitted A MINORRRRRRRRRR fan

The c major had a lot of good inflow from the edges, and imho did one of the best jobs of collecting air around the perimeter of the fan.

@christopherd.winnan8701

2 ай бұрын

@fully_retractable - Plus, there seemed to be some serious pattern formation in the outflow. Some kind of venturi vortex maybe?

I some how lost track of this channel, glad it popped up again.

I really like the concept of the C Major fan, and hope the following can help evolve the design. A note is an audible constant frequency. An interval is relationship between two notes. A chord is two or more intervals played at the same time. As shown in the video, an octave interval is either 1:2 or 2:1 of the frequency of the note it refers to. That reference is called the root, and is the note that names the chord. E.g. A C-chord has the note C as its root. A so called major chord combines the the root with a major 3rd and a perfect 5th interval. The relationship between the notes in the chord is always the same, no matter the pitch of the root. The notes you find on a piano (twelve-tone equal temperament) are equally spaced in twelve notes between each octave with the ratio 12√2 or ≈ 1.05946. For fan design it might be easier to use these ratios: Unison = 1:1 Major 2nd = 9:8 Major 3rd = 5:4 Perfect 4th = 4:3 Perfect 5th = 3:2 Major 6th = 5:3 Major 7th = 15:8 Octave = 2:1 Good luck!

@Bleaksigilkeep

2 ай бұрын

Are you sure about the major6 ratio? It should not the same as the major3

@TorkildKahrs

2 ай бұрын

@@Bleaksigilkeep you’re absolutely right! Corrected. Thanks!

If you have 4, 5, and 6 blades, the 6:4 is a fifth, and 5:4 is a major third. Also, the C-ness of it depends on how fast the fan is spinning. If C1 from the 4-blade part is like 32Hz, E1 is like 41Hz, and G1 is like 49Hz. I maybe see these in the graph, but it's dominated by the octaves at 64ish Hz and 128ish Hz.

@AtimatikArmy

2 ай бұрын

I want to understand this so bad!

I'm honestly most impressed with the Sawblade. It seems a clean improvement over the Noctua A12x25, same noise and higher static pressure at a lower RPM. I would be interested in seeing an airflow testing of that one, as well.

Shots Fired!!!! 😂😂

This is like inventing the Frosby flop!

That was... FANtastic!

Lol, now you're gonna get a bunch of squirrel cage fan designs 😂

The C Maj. fan would be louder if the blades passed closer to the supports for the motor. The blade passing the support is where all the tones are going to come from, which is why most fans use a curved blade so as to reduce this effect.

Ah yes the American with their "This should give a nice airflow", probably a European being like "Ich kann Beethovens Symphonie Nummer 9 mit einem Fächer nachspielen". And then there is the Aussie who just said, "Fuck it".

Honestly, "the wonder from down under"would be great for low profile CPU coolers and then spewing it out the back. It doesn't take too much extra space and clearly does well. Frankly, this should be a thing for such setups.

So the Wonder From Down Under just brought a blower fan to an open-air fan fight. If nothing else, it's served as a perfect example of why those things are so useful and why graphics cards that have them only need one. The downside is the amount of noise they make; if you're aiming for a quiet setup and have enough airflow for it, open air fans are the way to go.

Says he doesn’t know anything about music and plays an absolute banger in every episode

Awesome episode!!!!@!

Now we just need the pressure from the down under and the dBA from the sawblade and you have a perfect solution 😁

What! Got me good😂

Great work WFDU!!

Haha, the Wonder sounds most like a vacuum cleaner, and the C Major sounds kind of like a lawn mower!

@johnthegiant320

2 ай бұрын

vacuum cleaner you say?????

@HelloKittyFanMan

2 ай бұрын

@@johnthegiant320: You're not sure you can read that well, or...?

@johnthegiant320

2 ай бұрын

@@HelloKittyFanMan this almost is, but a vacuum motor and casing sure does move a lot of air.

@HelloKittyFanMan

2 ай бұрын

@@johnthegiant320: No, it isn't the motor that moves the air. And a vacuum cleaner _fan_ may not move a lot of air at once; it might just move somewhat of a little quickly (which still might not be a lot for a while). Yeah, I know this is kind of like a vacuum cleaner fan, but it still isn't one just yet.

@johnthegiant320

2 ай бұрын

@@HelloKittyFanMan was just saying it's an interesting starting point for a possible idea.

Great topic, thanks 👍

Very specific words in this specific episode :)

good episode. So many unique desisgns

FANTASTIC. Love it.

Gotta say, the comedy is getting better and better! 👏👏

In music there's a concept called interval, which is the pitch difference between two tones with some arbitrary frequencies. The higher frequency divided by the lower frequency is called the frequency ratio. Due to a combination of physics (harmonic series), and how tuning systems and history of music has developed, certain frequency ratios have been defined exactly or approximately, depending on the system of tuning that's being used. Now a major chord always has three tones: The base frequency, a major third frequency above it, and then a perfect fifth as the highest tone. The frequency ratios for these intervals are, 5:4 for the major third, and 3:2 for the perfect fifth interval. These interval ratios are from something called five-limit tuning, but there are other systems such as equal temperament tuning which isn't exactly following pure integer ratios but it gets pretty close. I won't get into reasons why equal temperament tuning is more common today, let's just say it has to do with proliferation of keyboard instruments (pianos, pipe organs, etc.) and leave it at that. So, for example, if we take a frequency of 220 Hz as the base tone, the major third of that would be 275 Hz, and the perfect fifth would be 330 Hz. These notes correspond to A3, C#4, and E4 notes, forming the A-major chord. Now this fan is designed so that it has three rings, each with different amount of blades. The idea here is that every ring rotates at the same speed, but the different amount of blades gives a different amount of "hits" on air per rotation. The inner ring gives four pressure pulses per rotation, the middle ring gives five pulses per rotation, and the outer ring six pulses per rotation. If the fan spins fast enough, these pressure pulses merge together to form audible tones. And the ratios between those tones depend on the amount of blades per each ring. Since the blade number ratios are a perfect match for the above intervals, the middle ring produces a tone with a frequency that is is 5:4 of the inner ring, and the outer ring produces a tone with a frequency of 6:4 of the inner ring (or 3:2 if you simplify). So the fan will always produce three tones that form a major chord; the exact tones depend on the speed at which the fan is running. If we assume that the fan is designed to spin at 2016 RPM, that means in one second the fan rotates 33.6 times. This means the inner ring produces 33.6 x 4 = 134.4 pulses per second, or a frequency of 134.4 Hz. This forms the base frequency of the chord. The middle ring produces 168 pulses per second, corresponding to frequency of 168 Hz. And the outer ring produces 201.6 pulses per second, or a frequency of 201.6 Hz. These tones correspond quite closely to the notes of C3, E3, and G3, which would be a C-major chord. However, if the fan's running speed changes, then it won't be a C-major chord. Unless the speed changes in octaves, or multiples of two.

Nice, James, I like how you mounted the Wonder to the smoke barrier.

5:25 FINALLY!!! I am waiting for this design since Season 1! Thank You!

Cant wait for someone to make a blower style supercharger next HAHAHA

Now we need a Robot vacuum showdown !! Awesome video

You really shoulda waited to print that winner. Lol

Milo needs to now create the brown note fan!

@BariumCobaltNitrog3n

Ай бұрын

haha the one that makes you poo!

The Wonder From Downunder might be the ultimate exhaust fan. Evict that hot air, now!

These videos could be 20 mins long with 2 minuites of smoke test for each fan, its so nice to watch

Labyrinth seals on the side plates. The problem with pressure is blow by. Blow by is limited by clearance. Labyrinth seals run far larger clearances by dividing the pressure drop per seal. Ok, Short version, the rotor has a spiral raised on it. The side plates have an opposite spiral on them. This gives many many intersecting seal edges (its edges not area, think hose vs restrict or plate) plus the imparted angular velocity of the air is forced outwards in exactly the same way on the stator as the rotor. This then acts as both centrifuge and scroll compressor with smaller blow by.

I'm a huge fan of this series 😊

The c major fan is awesome. Sounds really nice.

Very interesting. I'd love to see the practical performance on a radiator!

The wonder from down under is basically centrifugal blower. When the rotor starts spinning, the pressure around the outside increases (this is due to centrifugal force, which is a real force that is experienced by objects in a rotating). This causes air to exit through the outflow opening. The exiting air also draws in air from the center. These will always win static tests assuming they are properly designed. The power cap is almost a blower but they kind of screwed up the design. Maximizing static pressure involves considering the characteristics of the driving motor also. The rotor has to be sized so the motor operates at a speed and torque where it delivers high power.

If the fan is shining for a C Major, the inner ring should produce a C note, the middle ring produce an E note and the outer ring produce a G note.

very cool!