This is yet another example of a manuscript of a heat ray device used to set ships from a distance to combust into flames.
It is said that there was a quick burst of light and the ships wood was set to blaz instantly.
It is a disservice to call this a mirror, a mirror is the simplest of reflective not amplification of heat. Even heat ray may not describe these ancient plasma lasers.
LEONARDO DA VINCI – Studies of reflection in burning-mirrors
Leonardo da Vinci manuscripts Codex Arundel
Codex Arundel (BLL), c. 88r
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