You remember math, right? You know math. It's complicated, and just scary in general, and now those are apparently excuses for profiling an Italian economist and mathematician before having him ...

THIS book contains a revised edition of Books III., IV., V., of the “Syllabus of Plane Geometry” drawn up by the Association for the Improvement of Geometrical Teaching, with demonstrations of the ...

An airplane, traveling with a constant engine speed, makes a large and perfect circle parallel to the ground. There is no wind. Will it complete the same circle in greater, less or the same time if ...

THE readers of NATURE are so well acquainted with the genesis and growth of the Association whose syllabus has recently been given to the public, that we are relieved from all necessity of explaining ...