Quotation from: The Notebooks of Leonardo Da VinciWritten by: Leonardo da Vinci |
|
The shadow of _q r_ at _o p_ is red, being caused by the blue light _d e_; and the shadow of _q r_ at _o' p'_ is blue being caused by the red light _a b_. Hence we say that the blue light in this instance causes a red derived shadow from the opaque body _q' r'_, while the red light causes the same body to cast a blue derived shadow; but the primary shadow [on the dark side of the body itself] is not of either of those hues, but a mixture of red and blue.
|
| PREVIOUS GROUP HOME SITE HOME NEXT |
| Part of the RabbitHoleResearch Project Change Tag: ~~ 0 ~~ |