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Hovercaft. Hovercraft are vehicles that travel on a cushion of air. This page has more information on hovercraft.

HoverBall or Hover Ball. This is the same thing as a HoverSphere.

Hover. When something floats, is suspended, or flutters in the air it is said to hover. The HoverSphere is able to hover because it is filled with Helium. Helium makes the HoverSphere hover because helium only weighs about 0.1785 grams per liter. Our air is 80 percent nitrogen and nitrogen weighs 1.2506 grams per liter. This means helium is "lighter than air".

Hoverboard In the movie " Back to the Future: Part 2 " Marty McFly (played by Michael J. Fox ) is chased while traveling on a hoverboard. The hoverboard in the movie is basically a flying skateboard using some sort of propulsion system. Attempts have been made to make hoverboards, but no design has come close to the one used in the movie.

Hoverboy. Marcus R. Moore had a great site on Hoverboy, but it looks to be down now. Hoverboy is a great character that has been around for a long time.

HyperSphere. When searching for HoverSphere on the search engine Google, you will often be asked if you meant HyperSphere. According to Wikipedia (the free internet encyclopedia), a hypersphere is a higher-dimensional analogue of a sphere. A hypersphere of radius R in n-dimensional Euclidean space consists of all points at distance R from a given fixed point (the centre of the hypersphere).