Monitors use electromagnets to steer an electron beam. The earth has a more or l... | Hacker News

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		qbasic_forever on April 21, 2023 \| parent \| context \| favorite \| on: Four-Byte Burger [video] Monitors use electromagnets to steer an electron beam. The earth has a more or less constant magnetic field in a certain orientation. Rotating the monitor changes the magnetic flux the electron beam experiences and might distort which subpixels the electron beam is hitting.

Arrath on April 21, 2023 [–]

Interesting! I would have thought the field was too slight to have an effect in a case like this.

CrLf on April 22, 2023 | [–]

I had a Samsung 19-inch pseudo-flat CRT that showed discoloration in the corners just by rotating it horizontally. Turning it off and on again fixed it (I supposed it degaussed on startup).

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