Documents Cosmology The Life-Histories of Stars. Nuclear Fusion Stars produce light and heat because of the.....

Slide 1 Cosmology The Life-Histories of Stars Slide 2 Nuclear Fusion  Stars produce light and heat because of the processes of nuclear fusion which take place within their…

Documents Welding Mr. Wisness. What is welding? Joining two or more pieces of metal together by the fusion...

Slide 1 Welding Mr. Wisness Slide 2 What is welding? Joining two or more pieces of metal together by the fusion process Slide 3 Importance of Welding 50 % of Gross National…