{"version":"1.0","type":"link","title":"Seashell surface - Newikis","description":"In mathematics, a seashell surface is a surface made by a circle which spirals up the z-axis while decreasing its own radius and distance from the z-axis. Not all seashell surfaces describe actual seashells found in nature.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://upload.wikimedia.org/wikipedia/commons/c/c2/Seashell_Surface.PNG","thumbnail_width":1076,"thumbnail_height":612}