Summary: in situations where health workers and the public are exposed to pathogens, and commercial-grade masks are not available, it is possible to decrease the risk of infection using homemade masks using materials commonly available in the home. This brief review sh...
Famous for their clairvoyance more than half a century ago, the Twilight Zone episodes have of lately been compared to the state of present American society. Many of them could be taken as parodies of our current political times, were it not because they precede u...
For centuries wood has been the essential, irreplaceable material in the construction of guitars, violins, harps, pianos, marimbas, xylophones and many other musical instruments. In the marimba's case, particularly Mesoamerican instruments with their entirely wood...
En más de una ocasión hemos tratado de aportar evidencia en Mesoamérica, y ciertamente en Guatemala, que la marimba tuvo algún precedente en nuestra región, en paralelo a la aceptada teoría de que el instrumento fue introducido a las Américas desde Á...
Holding up a lit torch made of dry branches, a teenage girl, covered with patches of deer skin, helps her companion, a young boy of about the same age, descend on the smooth rocks leading to the entrance of a cave. As he jumps from the edge of the l...
"Bajaron por las pendientes empinadas de profundos cañones, Cañón de los Temblores y Cañón de los Murmullos fueron sus nombres; también pasaron por Río de Escorpiones, pero no fueron picados por los innumerables escorpiones que hay en él. Luego lle...
"They went down the steep slopes of deep canyons; Trembling Canyon and Murmuring Canyon were their names. They passed through Scorpion River, but were not stung by the countless scorpions in it. Then they arrived at Blood River, and did not drink fr...
Recientemente, en una bien coordinada campaña publicitaria en los Estados Unidos que incluyó artículos en el New York Times, Washington Post y la Estación Pública de Radio, entre otros medios principales, la Sociedad National Geographic anunció su nueva producción en v...
