Noiseless Bell.

Previous

We know that sound is a succession of vibrations which must be transmitted in a medium with weight, as air or water; in other words, in a vacuum there can be no sound at all. To prove this, introduce into the receiver a small bell, and as the air is extracted the sounds become weaker and weaker, and cease altogether when the air is completely rarified.


                                                                                                                                                                                                                                                                                                           

Clyx.com


Top of Page
Top of Page