The year 1527 in science and technology included a number of events, some of which are listed here.
Mathematics
Petrus Apianus publishes a handbook of commercial arithmetic, Ein newe und wolgegründete underweisung aller Kauffmanns Rechnung in dreyen Büchern, mit schönen Regeln und fragstücken begriffen, at Ingolstadt.[1]
Military science
Albrecht Dürer publishes a treatise on fortifications, Etliche underricht zu Befestigung der Stett, Schloss und Flecken, in Nuremberg.
^Depicted in Holbein's painting The Ambassadors (1533) – "Arithmetic Book". Holbein's The Ambassadors and Renaissance Ideas of Knowledge. SUNY. Archived from the original on 23 July 2011. Retrieved 2011-08-08.