50, 100 & 150 years ago.

• Localización: Scientific American, ISSN 0036-8733, Vol. 300, Nº. 3, 2009, págs. 12-12
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The article presents reprints of various articles that appeared in previous issues of "Scientific American." The article "Van Allen Belts," from the March 1959 issue, discusses the discovery of high-energy radiation areas in space. The article "Rescue Tug," from the March 1909 issue, describes a vessel that was created to save ships and their passengers after an accident. The article "Gorilla," from the March 1859 issue, talks about the existence of gorillas in Africa.