Dec 30,  · The Blade Free Electric Fan “blade-free” fan, called Vortec, sucks in the cool air from underneath – then diverges the heat and moisture from people sitting below. The design is also essential to how it functions. It looks like a UFO (but that’s not just for out of this world cooling). Mar 06,  · This was one of the most fun projects I've done! It involved plenty of problem solving, even before I started making it. I think it came out fabulous as I ho Author: Pask Makes. Feb 11,  · As you might imagine, there are a few scientific principles at play here. There's also an electronic element. While the tube doesn't have any blades inside it, the pedestal of the fan contains a brushless electric motor that takes in air and feeds it into the circular tube. Air flows along the inside of the device until it reaches a slit inside the tube.
Feb 11,  · As you might imagine, there are a few scientific principles at play here. There's also an electronic element. While the tube doesn't have any blades inside it, the pedestal of the fan contains a brushless electric motor that takes in air and feeds it into the circular tube. Air flows along the inside of the device until it reaches a slit inside the tube. Dec 30,  · The “blade-free” fan, called Vortec, sucks in the cool air from underneath – then diverges the heat and moisture from people sitting below. The design is also essential to how it functions. It looks like a UFO (but that’s not just for out of this world cooling). Mar 06,  · This was one of the most fun projects I've done! It involved plenty of problem solving, even before I started making it. I think it came out fabulous as I ho Author: Pask Makes.

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