Precise solar observations fed millions in ancient Mexico
Without clocks or modern tools, ancient Mexicans watched the sun to maintain a farming calendar that precisely tracked seasons and even adjusted for leap years.
Without clocks or modern tools, ancient Mexicans watched the sun to maintain a farming calendar that precisely tracked seasons and even adjusted for leap years.
Archaeology
Dec 12, 2022
2
330
A team of researchers working at Los Alamos National Laboratory in New Mexico has successfully characterized a crystal structure of a californium metallocene. In their paper published in the journal Nature, the group describes ...
As cars become more fuel efficient, less heat is wasted in the exhaust, which makes it harder to clean up the pollutants being emitted. Researchers at Washington State University, Pacific Northwest National Laboratory and ...
Materials Science
Dec 14, 2017
0
187
(Phys.org) —Linda Manzanilla, an anthropologist with Universidad Nacional Autónoma de México has published a paper in Proceedings of the National Academy of Sciences, offering a possible explanation for the collapse of ...
(Phys.org)—A team of researchers with members from Mexico, the U.S. and Germany has found that the demise of the pre-Columbian Mesoamerican society centered around a city known as Cantona, was likely due to a combination ...
(Phys.org) —A team of researchers with members from Mexico, the U.S. and the U.K. has found evidence that suggests the people living in ancient Teotihuacan made an alcoholic beverage named pulque as early as 200 to 550 ...
An animal once believed to have disappeared from North America before humans ever arrived there might actually have roamed the continent longer than previously thought – and it was likely on the list of prey for some of ...
Archaeology
Jul 14, 2014
19
2
(Phys.org) —Streaking across the sky at more than 50 kilometers per second at atmospheric heights of more than a 90 kilometers high, researchers using the first station of University of New Mexico's Long Wavelength Array ...
Astronomy
Jul 8, 2014
9
0
(Phys.org) —Dinosaurs dominated the landscape for more than 100 million years, but all that remains today are bones. This has made it difficult to solve a long-standing and contentious puzzle: were dinosaurs cold-blooded ...
Archaeology
Jun 12, 2014
0
0
Researchers from Northwestern University and the University of New Mexico report evidence for potentially oceans worth of water deep beneath the United States. Though not in the familiar liquid form—the ingredients for ...
Earth Sciences
Jun 12, 2014
12
6
The United Mexican States (Spanish: Estados Unidos Mexicanos (help·info)), commonly known as Mexico (English: /ˈmɛksɪkoʊ/) (Spanish: México (help·info) [ˈmexiko]), is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of Mexico. Covering almost 2 million square kilometres, Mexico is the fifth-largest country in the Americas by total area and the 14th largest independent nation in the world. With an estimated population of 109 million, it is the 11th most populous country. Mexico is a federation comprising thirty-one states and a Federal District, the capital city.
In Pre-Columbian Mesoamerica many cultures matured into advanced civilizations such as the Olmec, the Toltec, the Teotihuacan, the Maya and the Aztec before the first contact with Europeans. In 1521, Spain created the New Spain which would eventually become Mexico as the colony gained independence in 1821. The post-independence period was characterized by economic instability, territorial secession and civil war, including foreign intervention, two empires and two long domestic dictatorships. The latter led to the Mexican Revolution in 1910, which culminated with the promulgation of the 1917 Constitution and the emergence of the country's current political system. Elections held in July 2000 marked the first time that an opposition party won the presidency from the Institutional Revolutionary Party (Spanish: Partido Revolucionario Institucional, PRI).
As a regional power and the only Latin American member of the Organisation for Economic Co-operation and Development (OECD) since 1994, Mexico is firmly established as an upper middle-income country, considered as a newly industrialized country and has the 11th largest economy in the world by GDP by purchasing power parity, and also the largest GDP per capita in Latin America according to the International Monetary Fund. The economy is strongly linked to those of its North American Free Trade Agreement (NAFTA) partners. Despite being considered an emerging power, the uneven income distribution and the increase in drug-related violence are issues of concern.
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