Overhead projector. There is probably a funny pun in there but I don’t do puns.
Yeah an overhead projector, I forgot that part.
good lord that makes me feel old lol.
good lord that makes me feel old lol.
You? I remember giving training to Joes with that monstrosity! Never could remember which way to flip it!
You flipped it until it displayed correctly. Lol
You? I remember giving training to Joes with that monstrosity! Never could remember which way to flip it!
You flipped it until it displayed correctly. Lol
^^ wow that was hilarious.
Not that I consider myself particularly old at 44 y/o, but we were still using overhead projectors when I was in college.
We used these in grade school:
https://www.busaccagallery.com/userfiles/cache/000/005/298/5298_18164_med.jpg
and these:
https://s-media-cache-ak0.pinimg.com/736x/8a/ab/c9/8aabc9f540b58e6af7ad8f716bcb2137.jpg
A smell you can never forget…
we still had overhead projectors when I was a senior in high school
I remember them in middle school.
I think there may have been some overhead projector use while I was in high school.
Is that a film strip? I hate the smell of those. Boiling hot little projector always gave off a burning smell
And is the other thing a lithograph or mimeograph printer or whatever? Don’t remember those other than in fast times at ridgemont high where the kids all sniffed the fresh ink on their handout. Little high can be had there apparently
Fast Times Paper Sniff: http://youtu.be/Uu3iCvAQCHg
First picture is of an opaque projector. It uses a very high wattage incandescent bulb and projects the reflected light.
Second pic was mimeograph. Organic solvent based copy fluid gave off the most bizarre smell. If the teacher came in with freshly printed material, it would still be a little damp and you could almost see the smell coming off of it…
My physics prof in university used an overhead projector but those smelling copies stopped when I was in grade 6 or 7. And yes, that smell was quite distinct. We’d all take huge whiffs of fresh copies 
If only my car sounded like that . . .
It actually sounded pretty clean…almost like it was straight pipes + resonators.