В вашем браузере отключен JavaScript. Будет показана упрощенная версия сайта, в которой могут отсутствовать многие функции.

Материалы по тегу «regenerative furnace»

136

This man went down in history not only as a businessman who successfully promoted inventions and patents. Carl Wilhelm Siemens was an inventor and engineer who remained faithful to his craft until the end of his life.

Author Karina Lanyak

Partners

Show all

Social networking

Recent

Lectures

Click to start watching video
1252

What saints did the conquistadors pray to and why did they decide to conquer Mexico? What was the ethnic, regional, and age composition of the Conquista? 

Show all