• 0 Posts
  • 38 Comments
Joined 1 year ago
cake
Cake day: June 7th, 2023

help-circle








  • Dimmers will typically use a triac which cuts up the sinusoidal waveform. It doesnt actually lower the amplitude per se, but it limits the fraction of the time the waveform is on. Kinda like this. This means that a lot of the time the led isnt gettingas much or any power. The average power will be lower, and if the LED driving circuitry isnt designed to compensate for this, the LED will flicker.

    Clarification on triacs: they get turned on a certain fraction of the way into the cycle. Triacs will stay on until the voltage across them is 0. Conveniently the zero-crossing of the AC wave (when the wall voltage crosses zero to start foing negative or from negative to positive) does just that.






  • Imagine the kinds of things that even top athletes wouldn’t care to bring to the attention of doctors or dont get treated because of the cost hurdle. Imagine extending that to the entirety of the American population. Most of medical costs in america are because of the privatization of health care, administration overhead and artificially inflated costs.

    Its insane to me that people who are incompetent, especially at their own jobs, can get paid orders of magnitude higher than skilled workers. I did jury duty recently and in the case, the VP of a nursing facility was getting paid in excess of 200k and had the gall to claim they did everything by the book in a negligence case (they did not) and constantly failed to answer the attorney’s questions properly (she’d always answer a different question than what was asked, refuse to answer yes/no, contradict clear facts about what was on the page in front of her). Not sure who she thought she was fooling. Attorney literally had to ask her if they were looking at the same paper because she was in a different world. Its people like that that keep our healthcare system so expensive that people cant afford to survive.

    I have no doubt that people will fight tooth and nail to keep their trashy privatized health care - let them. Its just stupid to me that they refuse to allow lower cost health care of the same quality by the government. My brother in christ you could use it too if you stopped fighting for it to not get passed