You read that right, vacuum tubes…
I was surprised when reading this article, from the venerable IEEE society, on the latest breakthrough in vacuum tube technology: http://spectrum.ieee.org/semiconductors/devices/the-quest-for-the-ultimate-vacuum-tube
Turns out that vacuum tubes are still a big deal, and there are innovations still going on in that field. They solve problems that their solid-state grandkids cannot, especially in satellite technologies. It makes for a good motivational and inspirational story about how old tech still has relevance in the 21st century.
So if your industry was recently besieged by Internet technologies (e.g., music industry, print media, phone companies, travel agencies, etc.) take a lesson from the vacuum tube industry—there’s still plenty of room to grow, no matter what the naysayers say.