The internet, computer based learning, online or e-based learning
The answer to your question is B.-oil well
The idea that modern science took place as a kind a revolution has been debated among historians. A weakness of the idea of scientific revolution is the lack of a systematic approach to the question of knowledge in the period comprehended between the 14th and 17th centuries, leading to misunderstandings on the value and role of modern authors. From this standpoint, the continuity thesis is the hypothesis that there was no radical discontinuity between the intellectual development of the Middle Ages and the developments in the Renaissance and early modern period and has been deeply and widely documented by the works of scholars like Pierre Duhem, John Hermann Randall, Alistair Crombie and William A. Wallace, who proved the preexistence of a wide range of ideas used by the followers of the scientific revolution thesis to substantiate their claims.
Miners have been known to likely have the worst working conditions compared to many jobs. A huge amount of men and woman die daily from mine collapsings, damaged lungs, and random little things that just hurt them on the job. They have been fighting for a better work enviorment for years, but unfortunetly, because of how hard it is to accomidate good working conditions under ground, it has fallen upon deaf ears.