http://www.merlot.org:80/merlot/ A search of MERLOT materials Copyright 1997-2013 MERLOT. All rights reserved. Thu, 23 May 2013 06:40:15 PDT Thu, 23 May 2013 06:40:15 PDT http://www.merlot.org:80/merlot/images/merlot.gif http://www.merlot.org:80/merlot/ 44 34 http://www.merlot.org/merlot/viewMaterial.htm?id=744581 Many educational concepts are easier to understand when illustrated with vivid examples. This film explores methods for creating illustrations for educational presentations, videos, and printed materials. From the 2013 Innovations in Teaching and Learning Conference at Kansas State University. Mitch Ricketts. http://www.merlot.org/merlot/viewMaterial.htm?id=735047 A detailed analysis of buoyancy in the context of Felix Baumgartner's historic jump from 39 km altitude as the culminating event of the Red Bull Stratos mission. Buoyancy was provided by a helium-filled balloon that made the equipment less dense overall from the surrounding air.This article takes readers through the calculation of the density of the relevant gases (air and helium) and the net density of the ascent equipment. An error analysis shows that helium and air must have counter-diffused through the balloon wall and estimates the composition in the balloon. Also discussed are possible reasons for why the ascent equipment achieved a greater altitude than expected. http://www.merlot.org/merlot/viewMaterial.htm?id=710296 ejerciios para calcular concentración de soluciones http://www.merlot.org/merlot/viewMaterial.htm?id=707067 Sitio de búsqueda científica con materiales aprobados por revistas de ciencia e ingeniería aplicada.Posee gran cantidad de material a nivel latinoamericano y cubre prácticamente todas las áreas.