According to this teaching, light is the mechanical vibration or undulation of an imaginary ether, postulated for this end. This ether, if it reaches the eye, beats rapidly upon the retina, and gives us the knowledge of colour.
Horren arabera, argia bibratze mekanikoa izango litzateke edo helburu horretarako postulaturiko eter imajinario baten uhindura, zeinek iritsi denean, erretina, danbolin baten modura jotzen baitu, non, adibidez, segundoko 483 bilioi kolpek gorria eta 727 bilioik morea ematen baitute eta abar: