• 3 Posts
  • 43 Comments
Joined 1 year ago
cake
Cake day: June 9th, 2023

help-circle




  • I’m gonna echo what others have said here. The mastodon signup process is too complex, and searching for instructions just leads to “what is the fediverse and/or activitypub” explainers.

    I created a mastodon account a few years ago and it was my first introduction to the fediverse. It was frustrating and I only persevered because I REALLY wanted to replace twitter.

    Once I got it set up, I realized that no one who I followed on twitter was there. My feed is currently like 2 people, plus a bunch of dead accounts from people who dipped their toe in but didn’t stay.

    Joining Bluesky was simple, and there were already a bunch of accounts I wanted to follow. The recent influx has increased that, and it feels a lot like old school twitter without the nazis.

    People originally joined twitter (and stuck with it for so long) because that’s where everyone else is. Mastadon is too clunky join and use, so people aren’t.








  • The NYTimes has an article about it here.

    “It absolutely could be showing the displacement of air due to a projectile,” Mr. Harrigan said in an interview on Saturday night after reviewing the high-resolution images that Mr. Mills filed from the rally. “The angle seems a bit low to have passed through his ear, but not impossible if the gunman fired multiple rounds.”

    Simple ballistic math showed that capturing a bullet as Mr. Mills likely did in a photo was possible, Mr. Harrigan said.

    Mr. Mills was using a Sony digital camera capable of capturing images at up to 30 frames per second. He took these photos with a shutter speed of 1/8,000th of a second — extremely fast by industry standards.

    “If the gunman was firing an AR-15-style rifle, the .223-caliber or 5.56-millimeter bullets they use travel at roughly 3,200 feet per second when they leave the weapon’s muzzle,’’ Mr. Harrigan said. “And with a 1/8,000th of a second shutter speed, this would allow the bullet to travel approximately four-tenths of a foot while the shutter is open.”







  • It still is a blurry orange ball, where the orange is the location of radio wave emission. The team did a new image where they measured the polarization of the light, which is the result of strong magnetic fields where the light was emitted. The lines are drawn over the image to depict the polarization orientation of the light as a function of location.

    I want to be clear that this is an incredible feat, both the fact that they can produce an image of a black hole from the center of our galaxy AND determine the polarization of the light. But they don’t have a super crisp image of matter swirling into a black hole.