Even the speed of light cannot be measured, see Einstein convention. proton and neutrons are made from
quarks three quarks each neutron have a half-life off not quite 15 minutes which so far they are having great difficulty measuring accurately. protons last forever as far as they know The lift would need to go about 7 miles per second.
quarks three quarks each neutron have a half-life off not quite 15 minutes which so far they are having great difficulty measuring accurately. protons last forever as far as they know The lift would need to go about 7 miles per second.