#video on fraudulent yellow US$3 65-watt AliExpress charger which really only provides 12 watts and has iron weights glued inside the case to make it feel heavier. Also they used a non-safety-rated capacitor between the high and low-voltage side. In operation its internal parts heat up to damaging but not dangerous levels.
#PDF #appnote on LV8548 dual H-bridge motor driver #hardware
Za3k’s new #games
#video on how Alan Zhang got his #eVTOL actually #flying at last, for 3.28 seconds on its maiden flight and 68 seconds on its fourth, after redesigning it to be 90kg and more rigid (though still far too rectangular). He’s hoping for a 70kg payload, so it maybe falls short of being a flying car.
#Godot #tutorial #video on putting scenes (rather than atlases) into tilemaps
another #video on the #Octopus curve tracer. #electronics #hardware
#video of #3D-printing pressure vessels (tiny propane tanks) by spray-painting them with “dichtol” to make them watertight and gas-tight.
#video of enclosed carbon #arc-lamp. He demonstrates an Adams & Bagnall 133-Hz 110-volt 7-amp arc lamp designed for 75 volts across the carbon electrodes, warning that if you run it on lower frequencies its parts may overheat. He does eventually get to showing its workings at about 11 minutes, demonstrating the negative feedback #mechanisms that maintain the arc at the right length. He finally turns it on at 18'45".
another carbon #arc-lamp #video #formina; he strikes the arc at 6'17". It turns out to be from a movie projector.
#video of a detailed anatomy of an AM #radio transmitter doghouse and tower. #electronics
#Hossenfelder #video on #neural-networks for some reason not overfitting: the "double descent" problem
#video on why #Hossenfelder left #academia when covid came, explaining how the money flow works, and how most academic #research is bullshit
#Hossenfelder #video on sugar alcohols. When she cut these #food-additives out of her diet, her chronic intestinal problems went away.
#video on #Godot 4.3 new features like TileMapLayer, Parallax2D, and global groups.
#video on game engines for #visual-novels #games showing Rakugo, Ink, etc., but no demos of anything. Basically this is a video of other people’s websites.
#video #toread about #visual-novels #games explaining the genre conventions