[color=#c51414]Ideja: [/color][url]http://sploid.gizmodo.com/all-the-white-dots-in-this-rotating-circle-are-moving-i-1608517148[/url]. [color=#c51414]Za više detalja pogledajte: [/color] [url]https://www.youtube.com/watch?v=pNe6fsaCVtI[/url] [color=#1551b5]GeoGebra week challenge[/color]