As it is well known, a vacuum balloon using the materials we have at our disposal is not possible, because of the sheer force they have to resist from the air outside.
I asked this question on Physics stack exchange and haven't got an answer yet.
I have an idea and I want to know if there is anything that makes it impossible.
- Build a balloon out of graphene which is very light and it is conductive too.
- Since graphene is not airtight, cover graphene (that is not yet inflated) with a good electrical insulator which is also airtight.
- Now make the graphene store electric charge.
- This would exert force from inside as the electric charges on the graphene repel each other.
- This causes the balloon to inflate while having a vacuum inside.
Now my question is there any theoretical problems (not engineering problems) with this model?