online Definition and 3 Threads

I use an online physics calculator a lot to help me for various reasons. When I input less than 1 second into a watt hour calculation it initially tells me it can not be a negative value although that does disappear and it does do the calculation. Example power 10 w time 0.01 seconds 0.1 J...

I just found this incredible online museum with many vintage computing technologies on display. It's a real museum in Maryland, but it has this cool website with clear pictures of some of my favorite computing toys: https://museum.syssrc.com/ They often feature an image, a video, and an...

My knowledge of computing is decidedly out of date. Are there any good online courses that are free and that can get me to the leading edge/state of the art? A lot of the stuff that I've seen is ancient, like old MOOCs from 2010, and it makes me wonder if the providers of such are really doing a...