{"collection":"aor","html_url":"https://unchartedknowledge.5gfusion.net/browse/aor/dv/0249.htm","path":"aor/dv/0249.htm","source_url":"https://sacred-texts.com/aor/dv/0249.htm","text":"The Da Vinci Notebooks\nIf you place two lighted candles side by side half a braccio apart, and go from them to a distance 200 braccia you will see that by the increased size of each they will appear as a single luminous body with the light of the two flames, one braccio wide.\nIf you wish to see the real size of these luminous bodies, take a very thin board and make in it a hole no bigger than the tag of a lace and place it as close to your eye as possible, so that when you look through this hole, at the said light, you can see a large space of air round it. Then by rapidly moving this board backwards and forwards before your eye you will see the light increase [and diminish].","title":"Vol. I: IV. Perspective of Disappearance: 249.","type":"page"}