--sound clip--
There's something new in the heavens. Something that has never been there before. It's called Sputnik. We do not know, now, whether the satellite has direct military implications.
--/sound clip--
--sound clip--
Until two days ago that sound had never been heard on this Earth. Suddenly it has become as much a part of the 20'th century life as the whir of your vacuum cleaner.
--/sound clip--