Lisensi Anda Salah atau Anda belum memasukkan Lisensi

At midday at her home in Ecuador, Natalia holds a solid cube 1 metre above the ground and it casts a shadow. She rotates the cube a bit and finds that the smallest shadow she can create is a square. ...

Source : https://www.newscientist.com/article/mg24232301-000-puzzle-03-cube-shadow/