You need one of these ! https://www.eejournal.com/fresh_bytes/how-do-you-weigh-a-proton-with-the-worlds-most-sensitive-scale/ https://www.eejournal.com/fresh_b

You need one of these ! https://www.eejournal.com/fresh_bytes/how-do-you-weigh-a-proton-with-the-worlds-most-sensitive-scale/ https://www.eejournal.com/fresh_bytes/how-do-you-weigh-a-pro...