More than 300 rivers drain into Siberia's Lake Baikal, which holds 20 percent of the world's fresh water, more than all the North American Great Lakes combined.
That educators have not anticipated the impact of microcomputer technology can hardly be said that it is their fault: Alvin Toffler, one of the most prominent students of the future, did not even mention microcomputers in Future Shock, published in 1970.
A leading figure in the Scottish Enlightenment, Adam Smith’s two major books are to democratic capitalism what Marx’s Das Kapital is to socialism.
The Olympic Games helped to keep peace among the pugnacious states of the Greek world in that a sacred truce was proclaimed during the festival’s month.
Hundreds of species of fish generate and discharge electric currents, in bursts or as steady electric fields around their bodies, using their power either to find and attack prey, to defend themselves, or also for communicating and navigating.
While all states face similar industrial waste problems, the predominating industries and the regulatory environment of the states obviously determines the types and amounts of waste produced, as well as the cost of disposal.
Rivaling the pyramids of Egypt or even the ancient cities of the Maya as an achievement, the army of terra-cotta warriors created to protect Qin Shi Huang, China’s first emperor, in his afterlife is more than 2,000 years old and took 700,000 artisans more than 36 years to complete.
In laboratory rats, a low dose of aspirin usually suffices to block production of thromboxane, which is a substance that promotes blood clotting, but not seriously interfering with the production of prostacyclin, which prevents clotting.
When Congress reconvenes, some newly elected members from rural states will try and establish tighter restrictions for the amount of grain farmers are to be allowed to grow and to encourage more aggressive sales of United States farm products overseas.
Thomas Eakins's powerful style and his choices of subject-the advances in modern surgery, the discipline of sport, the strains of individuals in tension with society or even with themselves-was as disturbing to his own time as it is compelling for ours.
In the xy-coordinate plane, line m and line k intersect at the point (4, 3). Is the product of their slopes negative?(1) The product of the x-intercepts of lines m and k is positive.(2) The product of...
Equal amounts of water were poured into two empty jars of different capacities, which made one jar 1/4 full a...
Industrialization and modern methods of insect control have improved the standard of living around the globe while ...
A certain basket contains 10 apples, 7 of which are red and 3 of which are green. If 3 different&nb...
Restorers say that if allowed to remove and replace the discolored layer of varnish on the Mona Lisa, thecolors Leonardo da Vinci painted nearly five hundred years ago will once again shine through.