diff --git a/content/01_mechanical_LPF.md b/content/01_mechanical_LPF.md index 4d196373fcdfceef39984690e453aebd69d01827..427cd6551ed4a4010b8b29a87cae31f5df1b0faf 100644 --- a/content/01_mechanical_LPF.md +++ b/content/01_mechanical_LPF.md @@ -45,7 +45,7 @@ Since we'll represent the waveform-to-filter using force, the input has to be a The damping could be provided with a viscous fluid. But, I don't know of viscous fluid dampers that can adjust their viscosity on the fly, which we'll need to do if we want to sweep the cutoff frequency of our filter. Which obviously we do. I only know of one other way to get a resistance force directly proportional to velocity: eddy braking. So we'll need an electromagnet (vary the current to vary the resistance) and an aluminum rail. What could go wrong? -The capacitor, luckily, just beomes a spring. Phew. +The capacitor, luckily, just becomes a spring. Phew. Now a normal RC filter contains no inductor. It would be difficult to make my mechanical filter's moving parts massless[citation needed], but luckily this isn't strictly necessary. All RC circuits contain some self-inductance, as all mechanical circuits contain some mass. I'll just try to keep my filter's mass to a minimum relative to the damping and spring factors. diff --git a/content/02_dodeca_connectas.md b/content/02_dodeca_connectas.md index 3d5fc2a8fce125b53948a169b135387f1d92078d..7e0f67ccfa5dfa51cc82ad959ba7ea8ec8c8b9cf 100644 --- a/content/02_dodeca_connectas.md +++ b/content/02_dodeca_connectas.md @@ -15,7 +15,7 @@ For fit, there are three main parameters: thickness, kerf, and epsilon. Thicknes ![](/img/02_params.jpg#c) -Cutting proceeded smoothly. Some of the connectors (and one of the tiles) ended up with critical geometry inbetween corrugations, making them unusably weak. +Cutting proceeded smoothly. Some of the connectors (and one of the tiles) ended up with critical geometry between corrugations, making them unusably weak. ![](/img/02_dodecasoup.jpg) diff --git a/content/03_shannon_transfer.md b/content/03_shannon_transfer.md index 9d3a9ea2a37b20ce2cdd3b3f343495b0c3310ea6..98165be99857e258664fd96b826e82defc6340b0 100644 --- a/content/03_shannon_transfer.md +++ b/content/03_shannon_transfer.md @@ -13,7 +13,7 @@ Not surprisingly, there aren't many vector images of Claude Shannon online. So I ![](/img/03_source_collage.jpg#c) -Despite all the detail, the vinyl cutter only took a few minutes to cut my design. Weeding, however, took two hours. Finally I removed a panel from my desktop's enclosure and transfered the image. +Despite all the detail, the vinyl cutter only took a few minutes to cut my design. Weeding, however, took two hours. Finally I removed a panel from my desktop's enclosure and transferred the image. ![](/img/03_weeding_collage.jpg#c)