Scientist Lu Chen travels to a parallel world with advanced technology, but the industrial style of this world is rough and sturdy, which leads to major shortcomings in various industries. Without a degree but with the knowledge of a scientist, Lu Chen cannot enter a research institution and can only promote his own through live broadcasts. Invention, be your own boss. Famous works such as "Live Crashing Ten Ferraris" and "Bullet Armor That Every Household Can Make" have achieved 100 inventions that changed the world, and also made Lu Chen the identity of a practical scientist. Technology Live broadcast? Technology company? Technology group? Technology world! This book is also called "From a Dropout to a Great Scientist", "About My Reselling Technology in the Parallel World", "Three Years of Listing and Five Years of Retirement"