What group of miners was a model for Edwin drake when he decided to drill for oil?

An absorber separated two chemicals. How do you make one chemical go through one specific pipeline and another chemical go through another one to get to their intended destinations after separation? Is there an intelligence frequency in the am signal? What are dissimilarties of motor and an electri generator? Why was john bardeens transistor so important? What problems did Garrett Morgan have while inventing the traffic signal? What is the importance of Well completions? Common-mode rejection ratio of an ideal amplifier? What does the term VA mean when applied to a control transformer? How do you make record file in c language? Which country has the most successful integrated pest management system in the world? What is a useful program to draw graphics with the help of a mouse? What are different parts of armor called? What simple machines that you can find in your home? What is internal DTD and external DTD? How do you fix an infinite loop? In what instanses can i use the loops? How does constructions of dams help in soil erosion? What are abutments used for? Why does heat pump have high suction and high discharge pressures? Whats the name of the man that envision a network of computers around the world?