The Magic Bell

Fix a small bell to the wire that goes through the top of the

receiver. If you shake the wire, the bell will ring while the air is

in the receiver; but when the air is drawn off, the sound will by

degrees become faint, till at last not the least noise can be heard.

As you let the air in again, the sound returns.

The Luminous Writing The Magic Bottle facebooktwittergoogle_plusredditpinterestlinkedinmail