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Space colonization. The Artemis Accords (blue) and International Lunar Research Station 's treaties (red) are about establishing lunar bases and using lunar resources. The member arrangement of these treaties is described to mirror geopolitical rivalry between United States and China / Russia. [ 1 ][ 2 ] Space colonization is the process of ...
Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of 14,200,000 km 2 (5,500,000 sq mi). Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of 1.9 km (1.2 mi).
The Inca referred to their empire as Tawantinsuyu, [13] "the suyu of four [parts]". In Quechua, tawa is four and -ntin is a suffix naming a group, so that a tawantin is a quartet, a group of four things taken together, in this case the four suyu ("regions" or "provinces") whose corners met at the capital.
The Central Valley is a broad, elongated, flat valley that dominates the interior of California. It is 40–60 mi (60–100 km) wide and runs approximately 450 mi (720 km) from north-northwest to south-southeast, inland from and parallel to the Pacific coast of the state. It covers approximately 18,000 sq mi (47,000 km 2), [ 1 ] about 11% of ...
“The vast region is still sparsely populated, home to wide open spaces and a couple of the nation’s wildest national parks: Big Bend and Guadalupe Mountains,” CNN said about West Texas.
Map of Königsberg in Euler's time showing the actual layout of the seven bridges, highlighting the river Pregel and the bridges. The Seven Bridges of Königsberg is a historically notable problem in mathematics. Its negative resolution by Leonhard Euler, in 1736, [1] laid the foundations of graph theory and prefigured the idea of topology.
An American-style crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one letter ...
Quebec's spending in R&D in 2011 was equal to 2.63% of GDP, above the European Union average of 1.8%. [253] The percentage spent on research and technology is the highest in Canada and higher than the averages for the Organisation for Economic Co-operation and Development and the G7 countries. [254]