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The magic of DC-DC voltage conversion (2023)(lcamtuf.substack.com)
363 points by _Microft | 122 comments
An lcamtuf Substack article explaining DC-DC voltage conversion methods, including resistor dividers, linear regulators, buck converters, and charge pumps.
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An intuitive guide to Maxwell's equations (2020)(photonlines.substack.com)
476 points by gballan | 111 comments
A Substack post giving an intuitive, visual explanation of Maxwell's equations and the history of electromagnetic field theory.
So you think you could be an electrician?(asteriskmag.com)
419 points by zdw | 362 comments
Asterisk Magazine essay by Jesse Smith examining the popular advice to pursue trades like electrician work, and the realities behind it.
Radios, how do they work?(lcamtuf.substack.com)
613 points by todsacerdoti | 101 comments
A blog post by lcamtuf giving a brief introduction to antennas, superheterodyne receivers, and signal modulation schemes for hobbyists.
That's not an abstraction, that's a layer of indirection(fhur.me)
546 points by fagnerbrack | 213 comments
A blog post arguing that many so-called abstractions in codebases are merely layers of indirection that add complexity and hurt performance without real value.
A New Experiment Meta-Strategy(chillphysicsenjoyer.substack.com)
26 points by surprisetalk | 1 comments
A Substack post by an amateur physicist describing a new strategy for doing home experiments after reorganizing a messy lab to fit limited free evenings.
Coulomb's law remains tricky to test at home(chillphysicsenjoyer.substack.com)
20 points by surprisetalk | 16 comments
A Substack blog post about the author's attempt to test Coulomb's law at home and reflections on developing fluency with physical laws.












