I 'M UNCERTAIN why everyone is obsessed with hoverboards, however they are. Perhaps would could simply blame Back to the Future II and the scene where Marty McFly utilized one. Personally, I am still just awaiting my flying car.
In case you haven't been focusing, there are 3 various working hoverboards that in fact exist. Here is an evaluation of the physics of these 3 different boards.
I think this is the design that is one of the most like exactly what we would anticipate of a hoverboard. It's essentially simply a little helicopter, except you base on top of the rotors instead of sitting beneath them.
How does it work? For all hoverboards, you require some upward force to push versus the gravitational force. For the Omni hoverboard, this upward force is from the air. The props press air down resulting in an upward force on the rotors. Here is a more complete description along with some computations.
Why is it awesome? Much like a helicopter, you can move both up and down along with side to side. If you don't think this flies like a hoverboard, I don't think you will find anything much better. As you can see in the video above, the Omni hoverboard can fly over water or land. It doesn't truly matter what is below it.
Where does it fall short? The Omni hoverboard original has two major flaws. Is the flight time. Given that this is essentially like an electric powered quadcopter, it requires a battery. Batteries are heavy, so you can just power the props for a number of minutes of flight time. Second, this thing looks incredibly dangerous. What if you crash into a pedestrian standing on the ground? Would it eliminate that human or simply seriously injure them?
The Hendo hoverboard came out some time in 2015. It may not be much like the one in Back to the Future II, however a minimum of Tony Hawk rode it. It appears Hawk is assisting with the next version of the hoverboard.
How does it work? The Hendo engine utilizes electromagnets that produce altering electromagnetic fields to engage with a carrying out surface. Basically when these electromagnets change the electromagnetic field that produces an electric present in the metallic surface area underneath the hoverboard. This electrical present then produces its own magnetic field to repel the hoverboard electromagnets. Although the idea seems simple, it's tough to get it to operate in real life.
Why is it incredible? It's clearly a skateboard that hovers. That's pretty awesome.
The main issue with this hoverboard is that it only hovers over a conducting surface area. If you put this over water, the electromagnets would still make altering magnetic fields but without an electrical conductor below it there would be no repulsion.
The Lexus Hoverboard
Lexus made a hoverboard. It actually works too.
How does it work? Again, this hoverboard utilizes electromagnetic fields. Instead of altering electromagnetic fields from an electromagnet, the Lexus hoverboard uses superconductors. When a superconductor is put near a magnet, you can get a levitation result. That's essentially what occurs here. The magnets are in the ground and the superconductor is inside the board.
Why is it awesome? This board is incredible due to the fact that it's much smaller than either the Hendo or the Omni hoverboard (a minimum of in the meantime). It looks the most like a skateboard that also hovers.
Simply like the Hendo, this board also needs a special surface to ride it on. It doesn't work over water or any other surface area that doesn't already have magnets embedded in the ground. You can see the water vapor condensing in the air from the extremely cold magnets.
I guess we are still awaiting the best hoverboard.