Drawing instruments have been essential to mathematics, architecture, surveying, navigation, engineering design, and other technical endeavors from antiquity through the 20th century, although ...

a human cultural treasure in Korea (Masters of Traditional Korean Handicrafts book, pg. 153). He creates many traditional instruments out of silk and has dedicated most of his life to his craft. He ...

Thomas P. How, of Randolph, ?. Y., has made an improvement in the wheel pen for dotting lines in mathematical drawing, which it is thought will much increase its value. These pens have heretofore ...

Drawing instruments have been essential to mathematics, architecture, surveying, navigation, engineering design, and other technical endeavors from antiquity through the 20th century, although ...