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• Localización: Scientific American, ISSN 0036-8733, Vol. 290, Nº. 3, 2004, págs. 10-10
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The article presents an introduction to the letters section of "Scientific American". Science is a project in a constant state of revision. Theories are tweaked, probabilities adjusted, limits pushed, elements added, maps redrawn. In the November 2003 issue of Scientific American, "The Unseen Genome," by W. Wayt Gibbs, reviewed one such change currently underway in genetics as new research challenges the long-respected central dogma. In the field of space technology, "The Asteroid Tugboat," by Russell L. Schweickart, Edward T. Lu, Piet Hut and Clark R. Chapman, posited a new way to divert unpredictable Earthbound asteroids.