RT Science Channel @ScienceChannel: Beneath a piano’s exterior, 12,000 components fit together inside 17 layers of maple wood. https://t.co/sTmn5J7M8Z https://t.co/SN7Ubqlhjv
RT Science Channel @ScienceChannel: Beneath a piano’s exterior, 12,000 components fit together inside 17 layers of maple wood. https://t.co/sTmn5J7M8Z https://t.co/SN7Ubqlhjv