He invented `` A new geometrical method of measuring the human figure '' ( 1860 ) , and wrote and patented various improvements in boats and weapons . He invented `` A New Geometrical Method of Measuring the Human Figure '' ( 1860 ) , and wrote and patented various improvements in boats and guns .
Beliau mencipta "Satu kaedah geometri baru mengukur tokoh manusia" (1860), dan menulis dan mempatenkan pelbagai penambahbaikan dalam bot dan senjata. Beliau mencipta "A New Geometrical Measuring the Human Figure" (1860), dan menulis dan mempatenkan pelbagai penambahbaikan dalam bot dan senjata.