Meaning of flexatube | Babel Free

Definitions

A folded paper puzzle created by connecting the ends of a strip of four squares, each folded along 45-degree diagonals. The solver is challenged to turn the structure inside out using only foldings.

Examples

“At least two other completely different methods of turning the flexatube inside out are known, and both are as devious and difficult to discover as this one.”

“In the course of studying flexagons, Stone invented some fascinating objects, one of which was the tetra flexatube.”

“To create a different color for the inside of the flexatube: If using cardboard, glue two different colors together, back to back, before cutting squares into quarters”

CEFR level