free vibration

But the matter is not merely made small in amount; it is distributed on the whole at a great distance from the axis; consequently the period of free vibration is long, and the card is very steady.

If the gas possesses no inertia then it cannot vibrate, for some inertia is necessary for the free vibration.

The holder is cupped on one side to receive a ball as shown, and has a countersink on the other to permit a free vibration of the needle.

There are a few violins by this maker of the same pattern as the Grand Amatis, which are said to surpass the latter, having more wood in them, which was detrimental when they were made, but which age has mellowed, and they now possess a strong and free vibration.

Perhaps another reason may be named in the wood being so ripe and dry as to permit free vibration.