There has been one invention where gravity was used to create electricity. In their case, they used 25kg that dropped at 1mm/1 minute. For something to fall at that same speed for creating a filtration system, is there a way we could figure out more specifics about the filter itself?
I'm currently in High School and we have to create an idea to make the world better. Mine is to use the force of gravity and convert it to energy to power a system that will filter air. This is supposed to be used in developing countries where there are large amounts of biomass and harmful...