yes it is you can make one as small as your hand
yes
if its possible then the reason could be the expansion of high pressured helium from tank to balloon is large.
Oxygen has 8 protons, helium has 2 protons. To convert oxygen to helium, 6 protons has to be lost by nuclear disintegration which is not possible.
It is possible to manipulate helium into a solid form, though technically the lowest possible temperature is too high for helium to become a solid or "Freeze". Hence pressure is also required. Helium in its solid form has a crystalline structure, and it is also quite compressible (squash able) to a large degree.
helium balloons and make your voice sound weird
yes
Sir Christopher Cockerell is usually credited for inventing the hovercraft.
If you owned a hovercraft yes.
It is not possible to survive by replacing oxygen with helium. The body cannot use helium for cellular respiration and would very quickly suffocate. The chemical processes involved in cellular respiration would not work with helium, so there is no way to adapt your body to do this.
if its possible then the reason could be the expansion of high pressured helium from tank to balloon is large.
you can't use that if you want a good hovercraft!
There are many hovercraft available for different applications, for example leisure hovercraft, rescue hovercraft, commercial hovercraft - hovercraft come in all sizes, from racing through to leisure and large military hovercraft.
it is possible
i don't know, probably j.g
there is no hovercraft in gta4
Hovercraft is a noun.
The hovercraft was invented in 2005!