There are many movies from the ’80s that we all remember and idolize. They are the essence of our childhood and they bring back memories of awesomeness as well as humiliation. We believed in everything that we saw in those Hollywood movies, and it was pure magic. Today it’s all about what you can make look real without it being real… or something like that. The memories can go on forever.
However, as we have seen in the past decade, all the things shown in the early movies of the ’80s are coming true one by one and now the turn has come to the awesome and most inspirational hoverboard ever from the movie “Back To The Future” where Michael J. Fox plays the kid Marty McFly.
French artist Nils Guadagnin has created a working hoverboard that is sure to inject yet another dimension into what I think we’ll soon see more of… or rather I dream of seeing more of. With the use of some really heavy duty magnets and a laser guided balancing system, he actually makes the hoverboard fly and stay hovering in the air for hours and hours on end. Even with a little push, the hoverboard is bouncing, and then it settles itself back down. Where’s my helmet?! I am going to France!!!
click this
Floating without wind and noise isn't the hard part. There are forms of levitation such as Maglev trains that do this quite well— it's making them work without a track that gets tricky.
All modern forms of aerospace propulsion work by moving a mass, whether that mass is air or hot exhaust gasses. To create levitation without moving mass requires a force that works at a distance. The two most common forces that work at a distance are magnetism and electrodynamic (or electrostatic) force. Gravity also represents a force at a distance, but is not as well understood. The reason it is so difficult to float without moving mass is because most surfaces do not interact magnetically or electrodynamically.
Over the past 15 years, HoverTech has sought to develop a magnetic or electrodynamic levitation system. What we discovered indicates that most designs are inefficient. For instance, the extra energy required to force the ground into a conductive state far exceeds the energy required to lift an equivalent mass by conventional means. Nevertheless, we have also found ways to levitate without costing any energy expenditure. But before you start thinking there's no such thing as a free lunch, consider that work equals force times distance. Therefore, an object suspended at a fixed height (distance = zero), shouldn't require any additional energy to maintain its position. One example of this principle is our hydrostatic hovercraft theory.
Another potential hoverboard technology involves the use of magnetic fields to trap and contain ionized air. Because ionized air usually consists of positive or negative ions, the mutual electrostatic repulsion between the ions behaves exactly like pressure. Therefore, a magnetic field could theoretically replace the rubber skirt used on conventional hovercraft. By creating two concentrations of positive and negative ions, the overall net charge would be zero— which means you won't need to worry about shocks or your board discharging into the ground.
