The periscope lens was overhead
But over whose head?
I’ve always thought that the name referred to the image that is projected over everybody’s heads.
I think that in the television show Glee, set in Lima, Ohio, they had lockers in corridors that were between buildings, so the lockers were open air. I grew up twenty-five miles from Lima, so that and various other things in the show convinced me that the creators of the show knew nothing about the area around Lima. There are days in middle of winter when no one would want to go outside between each class. I concluded that the creators of the show had never been outside of southern California in their life. They just randomly picked Lima as the place to set the show.
To summarise, it appreas the main reason that these lockers exist is:
- these schools are in very cold parts of the world where a lot of warm clothes are needed travelling to and from school
- minimise carrying heavy text books to and from school
I think that is the gist of it?
Also, it appears that:
- With many schools increasingly going to digital textbooks and coursework, school lockers appear to be becoming less common, even in areas/schools where they used to be used.
Yep. A friend of mine tried writing on the board with gloves on, but that just looks weird, so finally he set up an overhead projector and wrote on blank acetate transparencies with markers for his lectures.
Yep. When I started at my school, my current classroom was at a location known as “Smoker’s Hill.” Just a small hill that everyone would smoke behind, so Admin. didn’t have to look at or take notice of them. Bulldozed flat as part of campus expansion in 1994.
At my high school (early '80s), the informally-designated smoking spot was on a small rise at the edge of the school property, which was called, by everyone, “Butt Hill.”
At the college I attended (1984-88), overhead projectors were used for lectures, though the professors wrote on a roll of acetate rather than individual sheets. One advantage is that the professor could write facing the students while the image was projected behind them, unlike a blackboard, where you’re writing facing away from the students.
(I used to wonder whose job it was to go around to the classrooms and wipe all of those acetate rolls clean.)
Japanese and Taiwanese schools also have the classes stay and the teachers move, with special classrooms for science and such.
Coming from Salt Lake City, I was surprised to see that Taiwan schools had corridors outside because that’s impossible where it gets cold in the winter.
We had lockers in junior high and high school. They changed our system to put 9th graders into high school the year I was in 8th grade and the 9th graders got the crappy lockers on the lower level.
Fortunately my sister was in 12th grade and let me share her locker.
The lens is overhead of the flat surface the transparencies lay on.
In context, it just means “above the main part of the machine”. See also “overhead cam engine.”
There used to be a much bulkier version called an “opaque projector”. The lens system was integral to the main case of the (comparatively ginormous) machine.
Belco, 77-80
Is anyone familiar with this “Arctic Fox” school backpack?
Wikipedia says it was introduced in 1977 as supposedly more ergonomic for kids carrying textbooks to and from school.
Opaque projectors, in my experience, are less bulky than your standard overhead projector. I built one as a kid. (I still have it, and it still works). The major drawback is that you need to flood your opaque picture with a lot of light in order to get a decently bright image, and this tends to fade your original quickly.
That would be 10 choices, since (for instance) if you turn it to 12, that stands in for 11 and 13 as well as itself. And from Feynman’s example in SYJ (p.122 in the Bantam paperback), it’s clear that that’s what he saw: in that example, the wheel had 100 numbers, but the lock was accurate to +/-2, so you could divide by 5 to get the numbers you had to try. Which he did.
Or in places where it rains, so raincoats can be stowed somewhere where they won’t drip on books, papers, &c.
Smokers at the high school where I spent the most time went across the street to the 7-11.
Noooooooooooooooooooo!!!l!!!l!!!l!!!
“Found stuffed in a wall locker in his home by his cats” is not a headline I want to be a part of.
Our smokers were traditionalists - they smoked in the boys’ room, just like the song. The boys’ bathrooms were usually filled with a haze of smoke, and you only went there if you really really had to.
Can’t speak to what the girls’ bathrooms were like.