Peter Dolan
Registered Senior Member
Well, the technological growth over the past one hundred years has been amazing. It partly has to do with the ongoing developments that were carried over from the discoveries and work started during the Industrial Revolution. Many products were improved upon and developed into even better products and so on. However, if you are interested in reading about possible "alien technology" being "seeded" into twentieth century society, I recommend reading Col. Philip J. Corso's book "The Day After Roswell."