# data[].attributes.body
A small motorcycle that has less constaints than motorcycles. This has the speed of a fast bicycles on the road.

# data[].attributes.body
The jetpack is a high speed (100 mph) and high altitude (10000ft) machine

# data[].attributes.body
An elevator is a room that you walk into usually located in a building once you step in you press a button indicating what floor you would like to go to then it takes you to that level.

# data[].attributes.body
This device is usually used by children or athletes. It gets people to locations and has to be manually used by the driver

# data[].attributes.body
This one wheel goes 15 mph and chargeable, which means it is electric.

The board can go on for 6 miles and then it will run out of energy eventually.

# data[].attributes.attachment_link.description
Simply put, the most beautiful ride on the planet. Snowboard all season, hack your commute, dominate any terrain and try to wipe that grin off your face!

# data[].attributes.body
Buses are similar to cars but can hold many more people. Usually, buses have checkpoints to only one stop where everyone on the bus gets off.

# data[].attributes.body
The chair lift is a char on a long metal strip that makes the chair go up and down objects.

# data[].attributes.body
Travels fast and can carry alot, you travel in luxury and get the the destination fast.
Big boat and can travel with wind power with saves the environment.

# data[].attributes.body
The chair lift is most commonly used to take skiers from the bottom of the mountain to the top. If this was not invented than skiing would be a lot harder.

# data[].attributes.body
A skateboard is a board of wood that has wheels on the bottom and can transport you with the work that you do to push it.

# data[].attributes.body
A electric car which is the longest range electric vehicle right now. It can reach up to 155 mph.

# data[].attributes.body
A Transit elevated bus hovers over the road. It was made in China

# data[].attributes.body
A high speed, urban, zip line type of transportation. It usually runs through cities.

# data[].attributes.body
This is a device that can go through water. The average speed is 95 mph. It has an engine on the back.

# data[].attributes.body
The walk car is a small board that can reach 10 km and can fit in a small bag. The walk car has to be charged and takes three hours to be fully charged.

# data[].attributes.body
This is a Segway. It can help you get from place to place in a mall. A lot of mall cops use them

# data[].attributes.body
The Lamborghini is a car that is powered by gas. It is controlled by the driver pushing the pedal and by turning a steering wheel. They can travel up to 205 mph.

# data[].attributes.body
Helicopters are agile aircrafts capable of taking off and landing vertically, hovering and flying in different directions. The helicopter is provided by spinning rotors which allows them to fly in the air and land on the ground.

# data[].attributes.body
The jet ski on average moves at around the speeds of 60 to 65 mph. It glides over the water somewhat like a boat.

# data[].attributes.body
"The Slide hoverboard contains a series of metal alloy superconducting blocks cooled to -197°C by reservoirs of liquid nitrogen."

This board goes 15 mph and and Is made out of wood.

# data[].attributes.attachment_link.readable_text
This week, Lexus introduced a short teaser video for SLIDE, a hoverboard that appears to not just live up to our Back to the Future II dreams but, at least stylistically, improve on them. Better yet, it's more science than science fiction. Here's how it works-and why you won't find one at Toys'R'Us any time soon.

Let's start with that teaser video, a scant 37 seconds of hoverboard hype that almost prompts more skepticism than excitement. A bamboo and carbon fiber skateboard, emitting wisps of smoke, levitates an inch or two off of what appears to be a concrete surface. A foot approaches as if to mount and ride-and then nothing. We cut away.

The Lexus hoverboard really does live up to its name.

That's not a lot to put one's faith in. We're barely a year past the most recent convincing hoverboard hoax-a Funny or Die promotion, it turned out-and are halfway through the year in which BTTFII took place, a ripe time for attention-grabbing tie-ins.

Even the information Lexus did provide at the time didn't jibe with what the teaser shows. According to the company's briefly stated promotional materials, the device employs "magnetic levitation" to achieve (and maintain) lift-off, which would be well and good if it weren't for where it was levitating.

"It's a tease, right? It gives you the impression that this thing is floating on top of concrete," says Mike Norman, Director of the Materials Science Division at Argonne National Lab. "Which it's not."

Fortunately, the bad news stops there. Surface trickery aside-there are probably magnets or steel mixed in or just underneath that concrete-the Lexus hoverboard really does live up to its name.

How It Works

Magnets. That's the short version. The long version means steeling yourself for a light dose of physics.

According to Lexus, its hoverboard relies on superconductors and magnets, which combine to repel the force of gravity and lift an object-like, say, a fancy skateboard and its rider-above the ground.

That may sound familiar to anyone who recalls the Hendo hoverboard, which debuted as a Kickstarter last fall. You can read about the physics behind the Hendo in great depth here, but the key difference between it and the Lexus project is that Lexus opted for a superconductor-which creates a different kind of magnetic field-instead of a plain ol' conductor.

"With a superconductor you don't need to have an oscillating magnetic field [like Hendo's]," explains Eric Palm, Deputy Laboratory Director at FSU's National High Magnetic Field Laboratory. "Instead you have something called the Meissner effect, which essentially says that when you take a magnetic field near the superconductor, it induces current in that superconductor, and creates essentially an image magnetic field on the other side of the superconductor. You create current, but since it's a superconductor, the currents don't die away. So you don't need oscillating magnetic fields. You can have a magnet that levitates above a superconductor or vice versa, a superconductor that levitates above a magnet."

If that all sounds a little technical, try to picture a maglev train, which relies on similar principles to achieve speeds of, in the case of Shanghai's Transrapid, over 300mph. Or better yet, watch this video, recommended by Norman, of a superconductor locked in a magnetic field:

As for the wisps of smoke you see rising from the sides of the Lexus board? That's not just for effect (although as effects go, it ain't bad). That's liquid nitrogen, cooling the superconductors below their transition temperature-the temp at which it becomes superconducting. Just how cold are we talking? -321 degrees Farenheit, says Palm, who also cautions that it's not quite as extreme as it sounds. "That sounds very cold," Palm explains, "but liquid nitrogen is actually a byproduct of the steel industry, so it's pretty inexpensive." It's the same principle as the dry ice you played with in AP Chemistry, just around three times as cold.

When the liquid nitrogen runs out, the superconductors warm up and the hoverboard stops, well, hovering, until you top it off again.

Here's one last barebones, layman's definition that might help, compliments of Norman. "There's interaction between the superconductor and the magnet that repels the force of gravity and allows the thing to levitate," Norman says. That's why it can't be pure concrete in the video; there has to be something magnetic there as well. When you apply the same principles to a human-bearing board, "it really is like you're floating."

He would know; while he hasn't ridden the Lexus hoverboard, he's spent time on a similar contraption in a lab. As it turns out, for all the anguish and anticipation around making hoverboards real, they have existed for some time. And they're not all that hard to make.

And yet! A brief teaser of the Lexus version has racked up well over three million views in just two days, a response that surprised few more than Lexus itself.

A Good Problem to Have

" Back to the Future messed my whole generation up." That's Lexus spokesperson Maurice Durand's take. "The world so desperately wants someone to mass produce a hoverboard."

Sorry to disappoint, but that someone is probably not Lexus. All SLIDE has ever been, says Durand, is part of a marketing campaign for an as yet unannounced car. (And no, the car won't float either). In truth, Lexus didn't even build the hoverboard itself; it partnered with outside agencies to create what turned out to be a surprise viral sensation.

"Let's be frank, it's not novel," says Durand. "There are other hoverboards. To a degree, we weren't expecting [the reaction]."

But while it's true that the Lexus hoverboard doesn't represent any scientific breakthroughs, it's perhaps not a total shock that it captured so many hearts and views. There's the use of not-quite-concrete, for one, which gives the false, aspirational impression that you can take this hoverboard with you anywhere you go. More important than that, though, might be that where previous working hoverboards have looked like something out of a poorly sweded version of Tron, the Lexus take looks downright luxury-grade.

That makes sense, says Durand, not only because of who made it but what it was made for. "I don't know how many hoverboards were built to feature in a global ad campaign," Durand explains, noting that SLIDE takes several design cues, like bamboo finish and carbon fiber touches, from the Lexus automobiles it's helping promote. In short, it may be the first functional hoverboard whose form lives up to-or even outshines-its function.

As for when we'll actually see SLIDE in action, maybe just in the full version of the ad? That could be anywhere from several more weeks to a couple of months. The intense interest has seemingly put Lexus in the slightly disjointed position of both basking in the viral glow (it's by far the most popular entry in this particular marketing series) and dampening expectations (no, they're not selling this, but can we interest you in a car?).

"Will they remember the hoverboard more than the car that's going to be in [the ad]? That's a distinct possibility based on the reaction so far," says Durand, who doesn't seem especially concerned. The only thing he really needs people to remember, after all, is Lexus.

Don't expect to see SLIDE anywhere else any time soon. A maglev hoverboard won't work on any appreciable scale until our streets and sidewalks are paved with magnets, and even then they're a wildly impractical mode of transportation. Despite that, Durand offers up just a small morsel of hope for your hoverboard future.

"I would never say never that it wouldn't be something we'd have for consumer use," he says, with seemingly total sincerity. Sure, it would take a total overhaul of our current infrastructure to even approach plausibility. But is that any more crazy than skateboards that fly?

Well, yes, OK, probably. That doesn't mean we can't dream of it, though-a levitation-filled future hovering just inches away from gravity's reach.

# data[].attributes.attachment_link.title
How That Lexus Hoverboard Actually Works

# data[].attributes.attachment_link.description
This week, Lexus introduced a short teaser video for SLIDE, a hoverboard that appears to not just live up to our Back to the Future II dreams but, at least stylistically, improve on them. Better yet, it's more science than science fiction. Here's how it works-and why you won't find one at Toys'R'Us any time soon.

# data[].attributes.body
This is a transportation device that flies in the air in a fast time. It is used to transport tourists and is one of the most used transport devices in the world.

# data[].attributes.body
This is a boosted skateboard what it is is it is a electric skateboard that can reach incredible speeds for a skateboard. It is controlled with a remote control that you hold when on the board.

# data[].attributes.body
A wide body jet airliner. It is commonly used in commercial flights. This transports people and cargo.

# data[].attributes.body
A huge aircraft that can hold alot  of people and can carry a lot for point A to point B.
Blimps travel fast and are less dangerous then air planes and you travel in luxury.

# data[].attributes.body
The swagway  is a modern transportation device that can get people around the city or neighborhood at a top speed of 12 miles per hour. These have actually became illegal in many cities due to careless people hitting into other pedestrians and the fact that some blow up depending on what battery they have in them. These machines are 100% controlled by you. The swagway  is powered by lithium batteries or Samsung batteries which are the two most dangerous batteries. There have been 2 major cases of these blowing up but there are more safe than dangerous ones.

# data[].attributes.body
It moves can move through water and can be controlled by you. It is a device that can move fairly threw water. However it runs on saltwater and you will need gas.

# data[].attributes.body
Bullet Trains are an urban form of quick transportation. They can travel up to 320 km/h.

# data[].attributes.headline
Self Balancing DUAL-Wheel Electric Unicycle Scooter

# data[].attributes.subject
Self Balancing DUAL-Wheel Electric Unicycle Scooter

# data[].attributes.body
A rugged urban transportation device that individuals could use daily to commute short distances with.

# data[].attributes.attachment_link.title
Self Balancing DUAL-Wheel Electric Unicycle Scooter! - REVIEW

# data[].attributes.attachment_link.description
► Inmotion V3Pro (On Sale! $550): https://goo.gl/hzbAuH (Free set of elbow/knee pads) ► My Camera Gear: http://amzn.to/1ImVJtD ► Watch more e-scooter videos: https://goo.gl/yJQzFu This is a self balancing ("hoverboard/hands-free segway") dual wheel (or twin wheeled) electric unicycle! Its technical name, the Inmotion V3S from eWheels.