8 great inventions that “almost” changed the world suddenly disappeared mysteriously

In history, there have been great inventions that, for some reason, were never published or developed. Below are 8 great inventions that could have changed the world, but mysteriously disappeared. 1. Stradivari’s musical instrument: This is one of those inventions that could have changed the world but mysteriously disappeared. Antonio Stradivari, the famous Italian instrument … Read more