atx_aquarian

joined 2 years ago
[–] atx_aquarian@lemmy.world 4 points 2 months ago (1 children)

Not pictured (that's called cherry-picking): Falcon 9 has 469 successful launches for a >99% success rate right now.

[–] atx_aquarian@lemmy.world 1 points 2 months ago

For physics enthusiasts, I'd also suggest "floatheadphysics" for his depictions and sometimes cathartic presentation style. I love how he broke down special relativity in an easily understood way.

Then I've also really been enjoying "For The Love of Physics" for his style of showing some of the math. His style is more of a classroom presentation, but in a way that reminds me of my most effective professors that made their lessons as easy to consume as mac and cheese.

I'm inclined to hit some online courses someday, too, but, for now, these have been great for conceptual stuff and my curiosity vs. time balance.

[–] atx_aquarian@lemmy.world 4 points 2 months ago (1 children)

"Abesede" is getting too close to "obesity", but I think "Absedee" works. But yeah, people need to stop trying to use letters and symbols to replace the phonemes of that letter's name.

[–] atx_aquarian@lemmy.world 3 points 2 months ago

That reminds me, I had a ride share driver named Blas, and I had to giggle and tell them about it.

[–] atx_aquarian@lemmy.world 2 points 3 months ago

Duolingo? Mine still has dark mode. Maybe just for subscriptions?

[–] atx_aquarian@lemmy.world 5 points 3 months ago* (last edited 3 months ago) (1 children)

You'd have to cut off VPN, SSH, and proxies, too, and to stop a really slippery network person from getting around that, you'd have to inspect protocol, not just block ports.

[–] atx_aquarian@lemmy.world 3 points 3 months ago* (last edited 3 months ago)

Dirt!

I was just recommended a product called "Milorganite", which is a soil product out of Milwaukee. They apparently ship it all over the US. People in, say, Florida are buying soil from Wisconsin.

[–] atx_aquarian@lemmy.world 16 points 3 months ago (1 children)

There is just something really amazing about being able to communicate directly between two points on the planet by bouncing EM waves off layers of the atmosphere. Like, imagine two people hundreds of miles apart are shining flashlights (or torches, if you prefer) at the distant sky, just above the horizon, and seeing the sky glow from each other's beams signaling each other. At the right frequencies and with the right conditions, certain atmospheric layer boundaries become reflective, like the boundary between air and water, so imagine that distant sky looks a little glossy up there, like water's surface reflecting your beam.

But then run that light source through a machine that does that flickering signal fast enough to encode your voice in the pattern of flickering that's glowing in the sky over someone else's horizon.

That's pretty closely analogous to what amateur ("ham") radio operators are doing when they play with the HF range of the radio spectrum. The electronics are less sophisticated than cell phones, but our usual gadgets rely on many other devices to relay info across the Internet (which is also amazing, in a different way). Ham radio, on the other hand, is like a fancy version of talking through two cans on a string, sometimes up to thousands of miles apart, but using fast flash lights instead of string and cans.

[–] atx_aquarian@lemmy.world 4 points 3 months ago

Username checks out.

[–] atx_aquarian@lemmy.world 6 points 4 months ago* (last edited 4 months ago) (1 children)

The inherent problem with that is how few there are. Don't get me wrong--yes, let's do that, too.

 
 

This faceted structure that I think is sound baffling always catches my eye when I go to concerts there. The angles catch the stage light in different ways. I wonder how many others stare at this stuff.

 
 

2
submitted 2 years ago* (last edited 2 years ago) by atx_aquarian@lemmy.world to c/telescopes@lemmy.world
 

Hi, Lemmians,

I wanted to share my experience messing with an old Dobsonian-style scope. My parents had a Coulter Odyssey 10.1" covered by a trash bag since somewhere around the early 90s. We used to have pretty dark nights back then, but the light pollution crept up over the years, and it probably went a couple of decades without any use, so they sent it with me after a visit.

It didn't take long before I was shopping for eyepieces and realizing the original focuser was a sore spot, as it was only a locking sliding tube--no knobs or gears for smooth, precise adjustment. I started thinking about what else I would change and, with their blessing, I decided to have a little fun changing it up.

Not all my changes were improvements, but it was rewarding to tear into it and put it back together with some of my own taste applied.

Full album: https://imgur.com/a/I9Mj1kT

before after

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