energetic material

 

  Galileo Galilei is a physician and astronomer famous for his heliocentrism theory. Behind his phenomenal and science-contributing theory, he suffered mistreatment and had to live in jail until he passed away in jail. His observation supports Nicolas Copernicus’s theory that says the earth is round. He then observes that it is not the sun that is moving around the earth but it is the earth that moves around the sun. Therefore, the sun is the center of the galaxy and the earth is not. His idea was greatly opposed by the church as they believe that the earth is the center of everything. As a result, they prisoned Galileo as well as made his life difficult before they caught him.   Ignas Semmelweis was one of the unfortunate scientists who got rejected for his idea of sanitation. When he saw that the disease spread quickly, he summarized that it was because the medics did not wash their hand and therefore the action leads to the spreading of germs.   Michael Servetus is important as he

  It is almost certain that problems will occur while drilling. For example, in areas in which similar drilling practices are used, hole problems may have been reported where no such problems existed previously because formations are non-homogeneous. Therefore, two wells near each other may have totally different geological conditions.  The most prevalent drilling problems include: Pipe sticking Loss of circulation Hole deviation Pipe failures Borehole instability Mud contamination Formation damage Hole cleaning H 2 S-bearing zones Shallow gas zones Equipment and personnel-related problems Understanding and anticipating drilling problems, understanding their causes, and planning solutions are necessary for overall drill-cost control and for successfully reaching the target zone. Mines and quarries increasingly need to produce more with less. Streamlining drill and blast routines can improve safety and productivity, and reduce operational costs. The above-shown video is one of its trype