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Barring unforeseen operational commitments and engagements, military divers hoped to use this project as a training platform for several years and "recover the maximum number of tires possible from day one." [10] Summer 2007 saw US Navy, Army, and Coast Guard divers based out of a Coast Guard base in Dania Beach, Florida working to clean the reef.
An erosion gully in Australia caused by rabbits, an unintended consequence of their introduction as game animals. In the social sciences, unintended consequences (sometimes unanticipated consequences or unforeseen consequences, more colloquially called knock-on effects) are outcomes of a purposeful action that are not intended or foreseen.
This is a list of some of the more commonly known problems that are NP-complete when expressed as decision problems. As there are thousands of such problems known, this list is in no way comprehensive. Many problems of this type can be found in Garey & Johnson (1979).
The problem of determining if a given set of Wang tiles can tile the plane. The problem of determining the Kolmogorov complexity of a string. Hilbert's tenth problem: the problem of deciding whether a Diophantine equation (multivariable polynomial equation) has a solution in integers.
The following outline is provided as an overview of and topical guide to exercise: Exercise – any bodily activity that enhances or log physical fitness and overall health and wellness. It is performed for various reasons including strengthening muscles and the cardiovascular system , honing athletic skills, weight loss or maintenance, as well ...
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For example, scientists worried that the first nuclear test might ignite the atmosphere. [54] [55] Early in the development of thermonuclear weapons there were some concerns that a fusion reaction could "ignite" the atmosphere in a chain reaction that would engulf Earth. Calculations showed the energy would dissipate far too quickly to sustain ...
Later most exercises involve at least two digits. A common exercise in elementary algebra calls for factorization of polynomials. Another exercise is completing the square in a quadratic polynomial. An artificially produced word problem is a genre of exercise intended to keep mathematics relevant. Stephen Leacock described this type: [1]