Disc jockey Alan Freed uses the term rock and roll to describe R&B, in an effort to introduce the music to a broader white audience.
The release of "Rocket 88", a song by Jackie Brenston and the Delta Cats. Some music historians consider this record to be the first rock and roll recording.
... motion.
It takes a while until one finds the "rolling" point, but the gyro will also be accelerated to a smaller extent by the slipping friction.
The device is ...