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The earliest of roots of science, which included medicine, can be traced to ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. [11] [12] Their contributions shaped ancient Greek natural philosophy. [13] [11] [12] [14] [15] Ancient Greek philosophers such as Aristotle (384–322 BCE) contributed extensively to the development of ...
India – National Council Of Educational Research and Training (NCERT) digitized all its textbooks from 1st standard to 12th standard. The textbooks are available online for free. Central Institute of Educational Technology (CIET), a constituent Unit of NCERT, digitized more than thousand audio and video programmes. All the educational AV ...
Physical chemistry, in contrast to chemical physics, is predominantly (but not always) a supra-molecular science, as the majority of the principles on which it was founded relate to the bulk rather than the molecular or atomic structure alone (for example, chemical equilibrium and colloids).
Secondary Stage: Classes 9 to 12, covering the ages of 14–18 years. It is again subdivided into two parts: classes 9 and 10 covering the first phase while classes 11 and 12 covering the second phase. These 4 years of study are intended to inculcate multidisciplinary study, coupled with depth and critical thinking.
[8] [9] [10] 1788 – Connecticut becomes the fifth state to ratify the United States Constitution. [11] 1792 – Treaty of Jassy between Russian and Ottoman Empire is signed, ending the Russo-Turkish War of 1787–92. [12] 1793 – Jean-Pierre Blanchard becomes the first person to fly in a balloon in the United States. [13]
Delhi, [a] officially the National Capital Territory (NCT) of Delhi, is a city and a union territory of India containing New Delhi, the capital of India.Straddling the Yamuna river, but spread chiefly to the west, or beyond its right bank, Delhi shares borders with the state of Uttar Pradesh in the east and with the state of Haryana in the remaining directions.
The duration of maternity leave was also extended from 6 to 12 weeks. [73] The redistribution of income enabled wage and salary earners to increase their share of national income from 51.6% (the annual average between 1965 and 1970) to 65% while family consumption increased by 12.9% in the first year of the Allende Government.