The Bible frequently refers to the plow (or charash or arotrioo) and recognizes its importance to providing food. Of all the advantages China had for centuries over the rest of the world, the greatest may have been the ability to sustain its large and growing population through agricultural ...
mostofthemachineryinusetodayhadbeendesignedinanearlyform.Themostimportantoftheearlyinventionswastheironplow.Asearlyas1790CharlesNewboldofNewJerseyhadbeenworkingontheideaofacast-ironplowandspenthisentirefortuneinintrodueinghisinvention.Thefarmers,however,wouldhavenone...
Filing Date: 12/26/1934 Export Citation: Click for automatic bibliography generation Assignee: INT NICKEL CO Primary Class: 148/323 International Classes: C22C37/08 View Patent Images: Download PDF 2066848 Description: This invention relates to alloys and more especially to chill cast nickel bearing...
were much used and were responsible for a considerable part of the large production of bronze objects at that time. The age was also marked by increased specialization and the invention of thewheeland theox-drawnplow. From about 1000bcethe ability toheatandforgeanother metal,iron, brought the ...