Ahmad Banu Musa
Born: about 805 in Baghdad, Iraq
Died: after 873 in Baghdad, Iraq
The three Banu Musa brothers are almost indistinguishable and most of the information is at THIS LINK. However, there is some information specific to the second brother: Ahmed ibn Musa ibn Shakir.
He wrote one texts under his own name on mechanics On mechanics is a treatise on pneumatic devices. Another text on the theory of the balance was written by the three brother but probably Ahmad played the leading role.
Article by: J J O'Connor and E F Robertson
MacTutor History of Mathematics