@Woodyanna@spore.social avatar

Woodyanna

@Woodyanna@spore.social

Hi. I love music, particularly folk music; reading, particularly fantasy and nonfiction; knitting; and hanging out with friends and family. I do two shows on #phoenixradio1208: Child's Play and the Jewish/Pagan Source of the Dance. I believe that everyone is unique and should be able to control their body, and that we must do whatever it takes to deal with the climate crisis. Long live human and natural diversity! she/her

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Quietgirl82, to random
@Quietgirl82@dragonscave.space avatar

Good morning awesome people!! :-)

I hope you’re all having an awesome start to your week and a great Tuesday.
Always remember you matter, and never forget to shine bright for yourself and others when you love yourself, you can love others.

Today we’re gonna be talking about the Efimov effect.

you and two friends are trying to hold hands in a large, open field while staying as far away from each other as possible. It seems tricky, right? If you stretch out too far, someone's grip is going to slip, and you can't maintain that triangle of hands. But let’s say there's a strange rule in this field that allows you to use a sort of magic rope. This rope can extend and bend in unusual ways, allowing all three of you to connect hands, even while standing surprisingly far from each other.

In the world of quantum physics, the Efimov effect somewhat mirrors this scenario. Typically, in quantum systems, two particles (like atoms) might weakly bind together under the right conditions, forming a simple molecule. However, under usual circumstances, adding a third particle without changing the conditions drastically doesn't lead to anything stable; it's like trying to stretch out too far in our hand-holding example.

Now, here comes the twist: when three specific types of particles (like certain atoms) come together under just the right conditions, they can form a bound state, even if any two of those particles can't form a stable pair by themselves under the same conditions. It’s as if our magic rope lets you and your friends hold hands while standing far apart in the field.

This peculiar bound state Is called an Efimov state. What’s truly fascinating about the Efimov effect is that it suggests a kind of fractal nature in quantum physics. Just like the repeating patterns in fractals, Efimov states can occur at increasingly larger scales – if three particles can form such a state, then under similar conditions, three larger groups of particles can also form larger Efimov states, and so on.

Woodyanna,
@Woodyanna@spore.social avatar

@Quietgirl82 Since the Efimov Effect builds exponentially, is it ever big enough that we encounter it on a macro scale, where someone could notice a compound created by it?

Woodyanna,
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@Quietgirl82 Thanks. That would be pretty wild.

Quietgirl82, to random
@Quietgirl82@dragonscave.space avatar

Good morning everyone. :)

I hope you’re all having a great weekend.

Your girl is doing awesome. I have been walking outside and I had a doctors appointment that went really well.

Always remember you matter and I wish you all the best with your week. Make sure to take care of yourself and take time to be kind.

Today we are gonna be talking about Kessler Syndrome.

Kessler Syndrome is a theoretical scenario describing the potential consequences of the accumulation of space debris in low Earth orbit (LEO). As the number of defunct satellites, spent rocket stages, and other debris fragments increases, the likelihood of collisions between objects also rises. Each collision generates more debris, leading to a cascade effect. In the Kessler Syndrome scenario, the density of debris in orbit becomes so high that it poses a significant risk to operational satellites and spacecraft. These collisions can generate more debris, creating a self-sustaining chain reaction that could render certain orbits unusable for generations and significantly increase the risk of collisions with active satellites and crewed spacecraft.

Woodyanna,
@Woodyanna@spore.social avatar

@Quietgirl82 I'm so glad your doctor's appointment went well. Good health news is wonderful! Thanks for all of your positive posts!

Woodyanna,
@Woodyanna@spore.social avatar

@Quietgirl82 Yes I am, thanks. I'm putting together my Internet radio shows for this week and will then read the next chapter for the Python class I'm taking. I hope you're having a good day too.

evilcookies98, to random
@evilcookies98@dragonscave.space avatar

What can I do to get better at reading out loud?

Woodyanna,
@Woodyanna@spore.social avatar

@crazydutchy @evilcookies98 My advice would be to do it a lot. The more you do it, the better you will get. I know it’s a cliche, but some cliches are true. Good luck!

Quietgirl82, to random
@Quietgirl82@dragonscave.space avatar

Good morning everyone :-) I hope your all having a great day. It’s Friday, and I hope your weekend will be awesome and magical. The holiday season is upon us and I hope you get lots of kindness and warmth.

Today we are gonna be talking about the Kar Metric.

think about yourself at a bowling alley. When you bowl a straight ball, it rolls directly towards the pins – this is a bit like moving in a straight line on a flat surface. Now, think about if the bowling alley lane started spinning like a carousel while you bowled. Your ball would start to curve due to the rotation of the lane, making its path more complicated. This spinning lane is a bit like what the Kerr Metric describes in the fabric of space-time.

The Kerr Metric is a solution to Einstein's General Relativity equations that describes the space-time around a rotating massive object, like a spinning black hole. In a simple, non-rotating black hole (described by the Schwarzschild Metric), space-time is curved, but it's like a static, non-spinning bowling lane. When a massive object spins, like with the Kerr Metric, it drags space-time around with it – this is known as "frame dragging." It's like our spinning bowling lane that affects the path of the ball.

So, in the vicinity of a rotating black hole, the paths of objects and even light get twisted and turned around in a complex dance due to this frame dragging. It's not just a simple dip in the fabric of space-time; it's a dynamic, twisting whirlpool.

Understanding the Kerr Metric is crucial for understanding how objects like stars, planets, and light behave near spinning black holes. It helps in making predictions about the orbits of stars around these black holes and even has implications for understanding the gravitational waves that are produced when massive objects like these spin and warp the space-time around them.

Woodyanna,
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@Quietgirl82 Hi Violet. I love your combination of positivity and science. Thanks for sharing, and have a wonderful weekend.

Quietgirl82, to random
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I don’t know what it is, but today has been very busy and I feel like I’m in this space where I’m just watching myself go through everything. Sometimes this happens if work is very fast paced or if I don’t get enough sleep. Whatever this is, I hope it passes soon. It’s just a not really describable feeling. I just needed to vent I guess.

Woodyanna,
@Woodyanna@spore.social avatar

@Quietgirl82 I hate the feeling of watching myself do things instead of actually doing them. It used to happen to me a lot, especially if I was feeling overwhelmed. I hope you can have some down time to do something simple and enjoyable soon.

Woodyanna,
@Woodyanna@spore.social avatar

@Quietgirl82 Thanks!

Quietgirl82, to random
@Quietgirl82@dragonscave.space avatar

Trans rights are human rights. simple.
Thats it, thats the post.✨✨✨✨

Woodyanna,
@Woodyanna@spore.social avatar

@Quietgirl82 @crazydutchy Thanks so much for posting that!

JeffBishop, to random

Yesterday was my last day at Microsoft. This was by our choice as a family to return home to Arizona and be closer to our son as well as other family members. I wish Microsoft and the Windows Accessibility team the best on their ongoing and strong commitment of accessibility and inclusion. Thanks to all of you for your support these past 6 years. It meant the world to me. Now for the next adventure! I have returned to the University of Arizona working on web accessibility. Lot of changes for us.

Woodyanna,
@Woodyanna@spore.social avatar

@JeffBishop Congratulations, Jeff! Best of luck with the new adventures.

TheQuinbox, (edited ) to random

Would there be any interest in a voiceover tutorial app? Firstly, and most importantly, for iOS, but potentially also on watchOS and tvOS, and maybe even macOS, because the current voiceover tutorial is archaic. Please boost for a larger sample size!

Woodyanna,
@Woodyanna@spore.social avatar

@TheQuinbox @jscholes I'm mostly interested in tutorials because I think new users would really benefit.

Woodyanna, to random
@Woodyanna@spore.social avatar

This is an easy-to-use meditation timer, and it's completely accessible. The developer is open to feedback to make sure it works for everyone. I really appreciate his willingness to listen and take feedback seriously! https://indieapps.space/@zenitizer/110430174572262116

MonaApp, to random
@MonaApp@mastodon.social avatar

Good news! Mona will be a one-time purchase app, and will be available on App Store this Spring:
Free trial: 14-day full-feature access for free, with no recurring fee.
Mona Essential: full-feature access on a single platform (iPhone, iPad, or Mac) for 10 USD.
Mona Extra: full-feature access on 3 platforms (iPhone, iPad, and Mac), and supports family sharing. Mona users can upgrade from Essential to Extra for 7 USD.
If you have purchased Spring or Spring mini, Mona Extra will be just 9 USD.

Woodyanna,
@Woodyanna@spore.social avatar

@MonaApp Congratulations! It’s a great app!

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