Each side is a sphere section. They don't have to have the same radius, they are still simple to understand with different radiuses.
The two things you have to have in mind that this does are:
- This is for example why you can use lenses to burn things with Sun rays, which are basically parallel.Conversely, if the input is a point light source at the focal length, it gets converted into parallel light.
- image formation: it converges all rays coming from a given source point to a single point image. This amplifies the signal, and forms an image at a plane.The source image can be far away, and the virtual image can be close to the lens. This is exactly what we need for a camera.
Some people like merges, but they are ugly and stupid. Rebase instead and keep linear history.
Linear history:
5 master
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4
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3
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2
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1 first commit
Branched history:
7 master
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6 \
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3 4 5
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2 /
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1/ first commit
Which type of tree do you think will be easier to understand and maintain?
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You may disconnect now if you still like branched history.
- phys.org/news/2023-02-muon-detectors-remotely-3d-image.html Using muon detectors to remotely create a 3D image of the inside of a nuclear reactor (2023)
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