/technologies/businessofengineering/b/blog/posts/this-month-all-those-years-ago-the-vacuum-tube-was-inventedThe first vacuum diode was invented by John Ambrose Fleming in 1904. (Image Credit: John Ambrose Fleming) There’s a lot to choose from when it comes to important inventions and how they make an impact across various industries. Invented by Joh...en-USTelligent Community 12