253 free display and packaging templates - wow! It's like a little spatial wonderland.
Hyperboloids from skewers
Like this one.
Soda bottle icosahedron
Giant soma cube
5-12-13 and 3-4-5 triangles
Finite state machines
Actividades Escolares: manualidades con botellas de plástico
The tortoise formation was one of the prime examples of Roman ingenuity at warfare. When deployed in such a way, the legionaries became virtually invulnerable to arrows or objects dropped from defensive walls.
Soma puzzle made of 1-inch cubes. In this picture, you see all the different shaped puzzle pieces that make up the Soma puzzle cube.
KIN001-Somacube-P-496x372.png 496×372 pixels
Somacube_group_boys_crop.jpg 613×620 pixels
roman chest shield
Notitia Dignitatum Magister Praesentalis I. Late Roman shield designs of the Comitatenses.