Whole-known-network
<p><span class="h-card" translate="no"><a href="https://fedi.astrid.tech/users/astrid" class="u-url mention">@<span>astrid</span></a></span> <span class="h-card" translate="no"><a href="https://glaceon.social/@lily" class="u-url mention">@<span>lily</span></a></span> did you know that the weave direction of the fiberglass changes the speed of light for the transmission line enough that for especially high speed signals (like PCIe Gen4 and higher) it pays off to make weird traces that aren't going vertically or horizontally because then the changes average out and it distorts the signal less</p><p>"fiber weave effect" is the industry term</p>
<p><span class="h-card" translate="no"><a href="https://fedi.astrid.tech/users/astrid" class="u-url mention">@<span>astrid</span></a></span> <span class="h-card" translate="no"><a href="https://glaceon.social/@lily" class="u-url mention">@<span>lily</span></a></span> you can figure this out from first principles if you consider that copper basically cannot contain an electric field within it because if it did, the free electron gas would almost instantly shift to neutralize it</p><p>without a potential difference in a field, there is no energy stored (since that's what potential is)</p><p>across the dielectric, you can have as much as the breakdown voltage allows</p>
<p><span class="h-card" translate="no"><a href="https://functional.cafe/@loke" class="u-url mention">@<span>loke</span></a></span> Yeah, that's what I mean. It's a continuous loop of awful.</p>
<p><span class="h-card" translate="no"><a href="https://mastodon.laurenweinstein.org/@lauren" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>lauren</span></a></span> can I just piggyback on your poat to mention the absolute worst thing about them. They loop with absolutely zero delay.</p><p>I never, ever, want to watch a video on loop unless it's specifically designed to do so.</p>
<p><span class="h-card" translate="no"><a href="https://fedi.astrid.tech/users/astrid" class="u-url mention">@<span>astrid</span></a></span> <span class="h-card" translate="no"><a href="https://glaceon.social/@lily" class="u-url mention">@<span>lily</span></a></span> speed of light in copper is like 0.99c, however, the energy (and therefore signals) on a PCB aren't propagating through the copper! the copper is there for the light to [extremely over simplified] bounce off</p><p>the signals are propagating through the insulator. basically all of the energy on the PCB is stored in the insulators (whether the PCB dielectric or the capacitor dielectric)</p>
<p><span class="h-card" translate="no"><a href="https://fedi.astrid.tech/users/astrid" class="u-url mention">@<span>astrid</span></a></span> <span class="h-card" translate="no"><a href="https://glaceon.social/@lily" class="u-url mention">@<span>lily</span></a></span> speed of light in a medium is slower than in vacuum</p><p>c is in vacuum</p><p>1/2c or so is in FR4, the most common PCB material (I just looked it up; I misremembered the 2/3)</p>
<p>Personally, I find <a href="https://mastodon.laurenweinstein.org/tags/YouTube" class="mention hashtag" rel="tag">#<span>YouTube</span></a> Shorts to be utterly useless, and even annoying. You can't seek on them, you have to go through extra steps to even find out how old they are, they repeat endlessly like some sort of nightmare, and they're mostly created for a target I.Q. level of 50. So of course, big money for <a href="https://mastodon.laurenweinstein.org/tags/Google" class="mention hashtag" rel="tag">#<span>Google</span></a> to be had!</p>
<p>Hello, I will play some Linux games over at <a href="https://cast.samsai.eu/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="">cast.samsai.eu/</span><span class="invisible"></span></a> in about 15 minutes. Tonight's menu: "A Monster's Expedition" and "RUN: The world in-between". Then we'll continue with Shadow of the Tomb Raider. See you in the chat!</p>
<p><span class="h-card" translate="no"><a href="https://social.noyu.me/@hikari" class="u-url mention">@<span>hikari</span></a></span> welcome</p>