Umbhalo Waphansi
a Incazelo yalesi senzakalo yavela ngo-1902, lapho izazi ze-physics u-Arthur Kennelly no-Oliver Heaviside zithi kukhona ungqimba lomkhathi olubuyisa amaza kagesi—i-ionosphere.
a Incazelo yalesi senzakalo yavela ngo-1902, lapho izazi ze-physics u-Arthur Kennelly no-Oliver Heaviside zithi kukhona ungqimba lomkhathi olubuyisa amaza kagesi—i-ionosphere.