Exsanguination incapacitate swine, poultry and domestic sheep, whereas a chemical is used for injured livestock. Continued pumping operation of the heart during exsanguination increases the rate of depletion, and thus hastens death, by raising the fluid pressure of the blood. Because the heart operates like a positive displacement pump, reduction of blood volume will not affect efficiency of cardiac output—deprivation of blood to the heart does gradually result in diminished function, but concurrently with similar death of other parts in the body. Quickly after the animal is incapacitated it is hung upside down by its hind limbs and an extremely sharp
What Is History? looks at general theories, history only covers the unique aspects of history and is selective. Second reason, it cannot teach lessons which later on in this chapter he contradicts himself. Third objection, that historians are selective and their work may contain biases. Fourth objection that it cannot predict the future and final objection is that history is embedded in religion and biases. In his reasonings he clearly contradicts himself several times in what defines science and history. He was strongly against historians only using the empirical method to analyze the facts of history and felt there needed to be less