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22 de may. de 2024 · Me encuentro en el undécimo año de una andadura mundial, la llamada Caminata Más Allá del Edén. Asesorado por arqueólogos, paleontólogos, genetistas e historiadores, reproduzco las primeras sendas de la dispersión que llevó a los humanos a salir de África en la Edad de Piedra. Por el camino intento examinar los acontecimientos ...
Hace 2 días · Germany. / 52.517°N 13.383°E / 52.517; 13.383. Germany, [e] officially the Federal Republic of Germany (FRG), [f] is a country in the western region of Central Europe. It is the second-most populous country in Europe after Russia [g] and the most populous member state of the European Union.
Hace 15 horas · e. The Internet (or internet) [a] is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) [b] to communicate between networks and devices. It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, linked by a broad array of ...
Hace 1 día · The first documented use of the phrase "United States of America" is a letter from January 2, 1776. Stephen Moylan, a Continental Army aide to General George Washington, wrote to Joseph Reed, Washington's aide-de-camp, seeking to go "with full and ample powers from the United States of America to Spain" to seek assistance in the Revolutionary War effort.
Hace 1 día · India, officially the Republic of India ( ISO: Bhārat Gaṇarājya ), [21] is a country in South Asia. It is the seventh-largest country by area; the most populous country as of June 2023; [22] [23] and from the time of its independence in 1947, the world's most populous democracy.
Hace 4 días · Biochemistry. Enzymes ( / ˈɛnzaɪmz /) are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products.
23 de may. de 2024 · Desert. A desert is a landscape where little precipitation occurs and, consequently, living conditions create unique biomes and ecosystems. The lack of vegetation exposes the unprotected surface of the ground to denudation. About one-third of the land surface of the Earth is arid or semi-arid.
