The Banach-Tarski Paradox. Yes, it is true. It is possible to take a cannonball apart into finitely many pieces, and put those pieces together to form a solid sphere the size of the sun.
The Banach-Tarski Paradox. Wagon, Stan. Asserting that a solid ball may be taken apart into many pieces that can be rearranged to form a ball twice as large as the
original, the Banach-Tarski paradox is examined in relationship to measure and group theory, geometry and logic.