Robert Page was a physicist and a pioneering "Hidden Hero" whose work at the Naval Research Laboratory (NRL) gave the United States a massive technological edge. He is often called the "Father of U.S. Radar" because he solved the critical problem of how to make radar practical for actual combat.+1 The Problem: The "Wall of Silence"In the early 1930s, the concept of using radio waves to detect objects was known, but the technology was "blind." Scientists could send out a radio signal, but they c