Sound Waves and their Sources (1933): http://bit.ly/1BulwyL http://bit.ly/1srawPv Source:
September 11, 2014 at 06:33AM
via IFTTT
Sound Waves and their Sources (1933): http://bit.ly/1BulwyL http://bit.ly/YzF6eY
— reaktorplayer (@reaktorplayer) September 11, 2014
September 11, 2014 at 06:33AM
via IFTTT