Researchers have discovered what appears to be the earliest known account of a rare weather phenomenon called ball lightning in England.
Credit: The Master and Fellows of Trinity College, Cambridge. Reference: Cambridge, Trinity College, MS R.4.11, p.324.
Researchers have discovered what appears to be the earliest known account of a rare weather phenomenon called ball lightning in England.
Ball lightning, usually associated with thunderstorms, is unexplained and has been described as a bright spherical object on average 25 centimetres, but sometimes up to several metres, in diameter.
Working together, physicist Emeritus Professor Brian Tanner and historian Professor Giles Gasper, of Durham University, UK, made the connection to a ball lightning event while exploring a medieval text written some 750 years ago.
The account, by the 12th century Benedictine monk Gervase of Christ Church Cathedral Priory, Canterbury, pre-dates the previous earliest known description of ball lightning recorded in England by
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