A good way to see the weakness of gravity is to do a little experiment that pits it against other forces. You don’t need a particle accelerator in your basement for this. Just take a standard kitchen magnet and use it to lift a small metal nail. In your experiment, that nail is being pulled down by the gravitational force of an entire planet (the Earth), and yet the magnetic force from a tiny little magnet is enough to keep the nail from falling. A tiny magnet overpowers a whole planet because magnetism is so much more powerful than gravity.
