how hansom cab operators in London furiously denounced the introduction of the umbrella; how obstetricians long rejected the use of anaesthesia during childbirth; how musicians’ unions temporarily prevented the playing of recorded music on the radio; how the Horse Association of America for many years fought a rearguard action against the tractor; how the natural-ice harvesting industry frightened people with scares about the safety of refrigerators.
Haters of innovati n come in and bring concerns
