Stephen Blake Christena Libros

Welding for Beginners has instructions on Master MIG (Metal Inert Gas) welding and the metal fabrication techniques you need to repair, create, and duplicate projects in your home welding studio.

This textbook surveys the major advances in the heavenly sciences from Isfahan, Maragha and Samarqand. It looks at the development of astronomy and astrology in the Islamic world from the 9th to the 17th century, and their influence on the beliefs and practices of individuals and institutions in the Islamic world and Europe.