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4.3 Chemistry. 4.4 Physical. 4.4.1 Optics. 4 ... physiology" to describe the study of the body's function and ... machines did not begin in earnest until the 18th ...
4.6.2 Roles during childbirth. 4.6.3 Delivery. ... obstetrics is the study of the reproductive process within the female body, including fertilization, ...
Obstetrics is the field of study concentrated on pregnancy, childbirth and the postpartum period. [1] As a medical specialty , obstetrics is combined with gynecology under the discipline known as obstetrics and gynecology (OB/GYN), which is a surgical field.
An image from John Dalton's A New System of Chemical Philosophy, the first modern explanation of atomic theory.. This timeline of chemistry lists important works, discoveries, ideas, inventions, and experiments that significantly changed humanity's understanding of the modern science known as chemistry, defined as the scientific study of the composition of matter and of its interactions.
Europe had about 105 universities and colleges by 1700. North America had 44, including the newly founded Harvard and Yale. [3] The number of university students remained roughly the same throughout the Enlightenment in most Western nations, excluding Britain, where the number of institutions and students increased. [4]
A person was arrested after attempting to climb a temporary fence near the White House this morning, according to a U.S. Secret Service spokesperson. The Secret Service said the person was ...
The 2024 Billboard Music Awards are back to highlight the songs, albums and artists that dominated the charts all year round. Find out who won.
The beginning of the 20th century brought the start of a revolution in physics. The long-held theories of Newton were shown not to be correct in all circumstances. Beginning in 1900, Max Planck , Albert Einstein , Niels Bohr and others developed quantum theories to explain various anomalous experimental results, by introducing discrete energy ...