Keelan

@lerxst@az.social @sundogplanets@mastodon.social the fact that the clocks on board the GPS satellites have to be calibrated 38 ms per day slow on ground so that when they’re in orbit and subject to relativistic effects they will be running at the right speed is such a cool, practical example of relativity.

@ThistleArts@mastodon.art The r/crafts community on reddit was a cool place where people shared their stuff, and it was friendly to self promotion. Eventually, more self promotors started to show up, and soon every single post was just hollow discussion with the promotor jumping in with Etsy links at the first oppportunity. No discussion on the process, materials, inspiration. Just Etsy links. The problem with self promotion is that some people have no boundaries and it ruins it fo everyone.