Wikipedia
Get flash to fully experience Pearltrees
Technology is the making, modification or improvement, applied activity or behavior, use and knowledge of tools , machines , techniques, crafts , systems , methods of organization, or environmental modifications or arrangement in order to solve a problem, improve a preexisting solution to a problem, achieve a goal or perform a specific function.
Portal:Technology
edit The Science Portal Science is a methodical study of nature that forms testable explanations and predictions .
Portal:Science
Mathematics is the study of numbers , quantity , space , structure , and change . Mathematicians seek out patterns and formulate new conjectures .
Portal:Mathematics
The last voyage of HMCS Karluk , flagship of the Canadian Arctic Expedition , ended with the loss of the ship and the subsequent deaths of nearly half her complement.
Portal:History
Portal:Arts
The arts are a vast subdivision of culture , composed of many creative endeavors and disciplines. It is a broader term than " art ", which as a description of a field usually means only the visual arts . The arts encompass the visual arts , the literary arts and the performing arts – music , theatre , dance and film , among others.