The 10th-century Arabic scholar Alhazen vividly described it, and the 15th-century painter Leonardo da Vinci wrote about it in his notebooks.
Alhazen, msomi Mwarabu wa karne ya 10 alieleza jambo hilo waziwazi, na mchoraji wa karne ya 15 Leonardo da Vinci aliandika kulihusu katika madaftari yake.