November 2024
Beginner to intermediate
128 pages
6h 44m
English
Content preview from Make: Volume 91
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PROJECTS: Walk-in Camera Obscura
2. MEASURE FOR THE LENS
Once you’ve decided which window the lens will
go in, and which wall it will project onto, you will
need to make some measurements to work out
the strength of the lens required.
First, measure the distance from lens to
projection wall.
Then measure the distance from the lens to the
main point of interest outside. You might need a
long tape measure, or for much longer distances,
you can use the measurement tools in various
mapping apps. My bedroom window looks out at a
nearby road roundabout with lots of moving cars.
I measured the distance from this roundabout
to my house using the rul ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.