Medical technology excerpts

The History of Clocks

Music links:
harpsichord
http://www.youtube.com/watch?v=RgeTIe19p_c
http://www.youtube.com/watch?v=EUOnHUkJBxs&feature=related

history of piano
http://www.youtube.com/watch?v=8q8T6etX-Xg

Jimi Hendrix "Star Spangled Banner"
http://www.youtube.com/watch?v=R_nO0F4ugss