A guide to the scientific knowledge of things familiar / by the Rev. Dr. Brewer.
- E. Cobham Brewer
- Date:
- [1853]
Licence: Public Domain Mark
Credit: A guide to the scientific knowledge of things familiar / by the Rev. Dr. Brewer. Source: Wellcome Collection.
434/496 page 428
![Q. WJiy do FiDDLE-sTRiKGS gtve musical 1 sounds ? ! A. Because the bow causes them to vibrate ; and this vibration sets in motion i tlie sound-waves of the air, and produces musical notes. ' Q. Why does a drum sound ? ] A. Because the parchment head of the drum vibrates from the blow of the ' drum-stick, and sets in motion thei . sound-waves of the air. i Q. Why do musical glasses yive sound ? | A. Because the glasses vibrate wheni they are struck, and set in motion the; , sound-waves of the air. Q. Why do FLUTES, dc, produce musicall , sounds ? r» 1 ' A. Because the breath of the per- former causes the air in the flute io? / vibrate; and this vibration sets in motiom s the sound-waves of the air. Q. Why do piAi^o-FORTES produce musicall ( sounds? . ]t A. Because each Tceij of the piana ^ (being struck with the finger) lifts up a little hammer, which hiocks against a](https://iiif.wellcomecollection.org/image/b21495464_0434.jp2/full/800%2C/0/default.jpg)
