Figure 1.
In the multiplying billiard balls routine, the magician first presents a single ball (a). Then, after a quick flick of the wrist, a second ball suddenly appears (b).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.