{"collection":"The Age of Reason","full_text_available":false,"graph_url":"https://unchartedknowledge.5gfusion.net/v2/api/page/sacred_texts_v1_aor_dv_0200_htm/graph","html_url":"https://unchartedknowledge.5gfusion.net/v2/page/sacred_texts_v1_aor_dv_0200_htm","id":"sacred_texts_v1_aor_dv_0200_htm","license":"unknown_pending_legal_review","rights_basis":"sacred_texts_v1_preview_gate_primary_text_only; acquisition-method/ToS and compilation-copyright questions still open, not resolved by this gate","source":"sacred_texts_v1","source_url":"https://unchartedknowledge.5gfusion.net/browse/aor/dv/0200.htm","summary":"The Da Vinci Notebooks\nOn the relative depth of cast shadows (200-202).A spot is most in the shade when a large number of darkened rays fall upon it. The spot which receives the rays at the widest angle and by darkened rays will be most in the dark; a will be twice as dark as b, because it originates from twice as large a base at an equal distance. A spot is most illuminated when a large number of luminous rays fall upon it.","tags":["Codex Atlanticus","Inventions and Engineering","Leonardo da Vinci","Renaissance Science"],"text":null,"title":"Vol. I: III. Six Books on Light and Shade: 200.","tradition":"The Age of Reason","translated_text":null,"word_count":149}