Activists from a group called "Third Square," which promotes a middle way in the rift between the Muslim Brotherhood and supporters of the army's overthrow of Egyptian President Mohammed Morsi, shout slogans as they gather to oppose both parties at Sphinx Square in Giza on July 30. Asmaa Waguih/Reuters/Landov hide caption

itoggle caption Asmaa Waguih/Reuters/Landov

An Egyptian man mourns the death of a relative, shot dead after violence erupted Friday night, inside the Muslim Brotherhood field hospital in Cairo. Florian Plaucheur/AFP/Getty Images hide caption

itoggle caption Florian Plaucheur/AFP/Getty Images

Juan Pablo Gonzalez, a science and math teacher in San Diego, posted an offer to teach urban planting, including hydroponic techniques. He and his wife were inspired by the site and offered to help by translating it into Spanish. Courtesy of Juan Pablo Gonzalez hide caption

itoggle caption Courtesy of Juan Pablo Gonzalez