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The philosophy of science, a sub-branch of epistemology, is the branch of philosophy that studies the philosophical assumptions, foundations, and implications of science, including the natural sciences such as physics, chemistry, and biology, the social sciences such as psychology, history, and sociology, and sometimes—especially beginning about the second decade of the twentieth century—the formal sciences, such as logic, mathematics, set theory, and proof theory. The twentieth century witnessed a proliferation of research and literature on the philosophy of science.

Popular Article: United Press International

United Press newsroom, 1922

United Press International (UPI) is a global news agency, headquartered in the United States. The company was founded in 1907 by Edward W. Scripps who believed that there should not be restrictions on who could purchase news from a news service, in opposition to Associated Press (AP), which is a cooperative owned by its members who both contribute and use its stories. UPI was successful for several decades, with a large number of well respected "Unipresser" reporters associated with it.

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The "aegis" is the shield of Zeus, often worn by Athena, and has an amulet of the Gorgon Medusa's head (source: Aegis)

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