FeaturesThe Science of SiblingsSpring 2015When you meet Vishwanath “Vishu” Lingappa ’75, one of the first things you notice is his voice. In a blog for National Geographic, Carl Zimmer calls it a “radio-talk-show-host” voice. Other descriptions could equally well apply. It is a CEO’s voice and an orator’s voice. A simple interview with Lingappa has more dramatic pianissimos and booming crescendos than a Beethoven symphony. Most of all, though, it is a big brother’s voice, loud and encouraging and demanding at the same time. In a literal way, Vishu has always been there for Jairam and his sister Jaisri ’79.