Uncategorized

  1. Math

    Hyperbolic Five

    Dutch graphic artist M.C. Escher (1898–1972) devised many highly original schemes in his attempts to capture the concept of infinity visually. One strategy he often employed was to create repeating patterns of interlocking figures. However, although he could imagine how such arrays extended to infinity, the actual pattern he drew represented only a fragment of […]

    By Ivars Peterson
  2. Astronomy

    Stellar Tantrums: Tracking the flaring cycles of other stars

    Astronomers are closely tracking the ebb and flow of magnetic activity and powerful flares on stars other than the sun.

    By Sorcha McDonagh
  3. Health & Medicine

    Better Bones: Women benefit from low dose of estrogen

    Ultralow doses of estrogen and progesterone given to postmenopausal women boost bone density compared with placebos, without causing the adverse effects seen in some women who get larger doses of these hormones.