sentences:  He gathered a small team of gifted colleagues (most notably, Don Williams, Tom Hudspeth and John Mendel) to convert the concept into a design for a practical geostationary communication satellite system.The spin stabilized satellite itself weighed only 55 pounds.When his superiors initially refused to fund the project, Rosen began talking to his contacts at Raytheon; rather than lose him to his previous employer, Hughes' management agreed to support prototype development.