BOHR MODEL electron around center speed
light colour and orbite
http://hyperphysics.phy-astr.gsu.edu/hbase/bohr.html
electron linear speed around center
v = 2.18x10^6 m/s


Marosz (me )
8 km/s = 8 000 m/s

it is very important problem on Earth

how heavy is electron on Earth

how heavy is electron in Universe