yes it is you can make one as small as your hand
yes
No, it is not possible to make a hovercraft solely out of magnets. While magnets can be used to levitate objects (like in magnetic levitation trains), the principles are not practical for creating a hovercraft due to the need for a continuous power source and stability in motion.
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.
if its possible then the reason could be the expansion of high pressured helium from tank to balloon is large.
HeH2 does not exist as a stable molecule. It is theoretically possible to form a compound with one helium atom and two hydrogen atoms, but the extremely weak binding forces between helium and hydrogen make it highly unstable and difficult to create or observe.
yes
Sir Christopher Cockerell is usually credited for inventing the hovercraft.
If you owned a hovercraft yes.
Yes, helium can be artificially produced through nuclear reactions or by extracting it from natural gas deposits.
No, it is not possible to make a hovercraft solely out of magnets. While magnets can be used to levitate objects (like in magnetic levitation trains), the principles are not practical for creating a hovercraft due to the need for a continuous power source and stability in motion.
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.
No, it is not possible to manufacture helium. Helium is a naturally occurring element that is produced through the process of nuclear fusion in stars.
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.
i don't know, probably j.g
it is possible
The hovercraft was invented in 2005!