Show t. t ili TODAY 8 TOMORROW LITTLE KNOWN FACTS THAT AFFECT US ROCKETS RADIOS AND YOU The next time you listen to a favorite tune on your car radio rudio you might con con- eider cider that you may not have been able to hear anything at all if it were not for a aman aman aman man named Paul Galvin Working In a Q garage he built the first commercially successful car radio In 1929 The roads were rougher and the cars rode harder in those days Putting together a vacuum tube radio rugged enough to work and keep on working in an automobile automobile automo bile was considered a major engineering achievement Today the radio company company com pany Paul Galvin created along with his radio has expanded expanded ex its horizons horizon and In Inthe Inthe inthe the process It has helped to expand the thu horizons of the rest of or the world as well Its Ita engineers today are building radios that work over the lie almost unimaginable able distances and hostile environment environment of outer spate space For example the equipment equip ment they built for the Mariner spacecraft will send kend and receive signals on its flyby flyby fly fly- by of Jupiter Saturn and their moons moons 0 oa 0 Radio signals traveling at the speed of light will take an hour and 20 minutes min minutes utes to reach the Mariner when Its It's in the vicinity of Saturn And it will wilt take another hour and 20 minutes min mn utes for Cor signals returned by that Motorola built equipment to t travel Ill I'll vel the million miles mile back to the Jet Propulsion Labo abo Laboratory in California t. t |