I can't recognise a single thing in this picture; this is how my mum described having a stroke
Well, no she didn't, she just screamed "I don't know" over and over again every time she saw me for five years then died, but you get the point
I'm exactly 30 and I had a hard time deciphering it myself. "Okay that's a impeller. Wait no, that's the bottom of something. A CRT?? Oh crap it's on a copier. What???"