Oh sweet, I didn’t realize they were making new videos.

Thanks for sharing!

Beehaw had been around for a few years before lemmy.world launched. They have a specific sort of space they want to create, so good for them for being able to maintain it.

The US Department of Energy…

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.

A new kiln design and the first attempts at forging - Primitive Technology is making progress towards achieving the Iron Age from scratch!

As always, turn on closed captions for the complete experience. This video in particular had a lot of info in the captions.

The latest Map Men video is a bit light on the maps (there’s basically only one) but is still a fascinating look at how top level domains came to exist and not match the physical world.

Their previous video, Internet Vs Ocean: the essential wires we never think about, is a good companion piece that describes the network of undersea cables that carry the internet across oceans.

Where did you hear that? CFCs can linger in the atmosphere for 50-100 years, so recovery is a slow process. It took more than a decade after the Montreal Protocol went into effect before the hole in the ozone layer stopped growing. Additionally, different parts of the ozone layer will recover at different rates:

If current policies remain in place, the ozone layer is expected to recover to 1980 values (before the appearance of the ozone hole) by around 2066 over the Antarctic, by 2045 over the Arctic and by 2040 for the rest of the world. Variations in the size of the Antarctic ozone hole, particularly between 2019 and 2021, were driven largely by meteorological conditions. Nevertheless, the Antarctic ozone hole has been slowly improving in area and depth since the year 2000.

Lots of doom and gloom in the comments here. As the article describes, the hole in the ozone layer varies in size over time. It is slowly recovering, but the annual variability means it sometimes is larger than before.

The variability of the size of the ozone hole is largely determined by the strength of a strong wind band that flows around the Antarctic area. This strong wind band is a direct consequence of Earth’s rotation and the strong temperature differences between polar and moderate latitudes.

If the band of wind is strong, it acts like a barrier: air masses between polar and temperate latitudes can no longer be exchanged. The air masses then remain isolated over the polar latitudes and cool down during the winter.

Although it may be too early to discuss the reasons behind the current ozone concentrations, some researchers speculate that this year’s unusual ozone patterns could be associated with the eruption of the Hunga Tonga-Hunga Ha’apai in January 2022.

And

Claus concludes, “Based on the Montreal Protocol and the decrease of anthropogenic ozone-depleting substances, scientists currently predict that the global ozone layer will reach its normal state again by around 2050.”

Yikes.

DeSantis is trying to run to the right of trump. Recall that trump began his 2016 campaign by saying

”When Mexico sends its people, they’re not sending their best. […] They’re sending people that have lots of problems, and they’re bringing those problems with us. They’re bringing drugs. They’re bringing crime. They’re rapists. And some, I assume, are good people”

I suppose advocating for war crimes is one way to campaign to the right of trump on border security.

Granted trump also campaigned by calling for war crimes back in 2016, so this isn’t entirely novel for a GOP presidential candidate:

The other thing with the terrorists is you have to take out their families, when you get these terrorists, you have to take out their families. They care about their lives, don’t kid yourself. When they say they don’t care about their lives, you have to take out their families.”

But on the other hand, DeSantis was a navy lawyer at Guantanamo tasked with making sure the soldiers followed the law. And we know how well that went.

As a young navy lawyer, the Republican was posted to the notorious prison camp. What he did there – and his role in the investigation of three deaths – remains controversial

In summary, when it comes to their policy on war crimes among the top republican candidates for president, Trump talks a big game but DeSantis has the actual experience to back up his “promises”.

The fact that I could quickly write up this analysis with sources is a damning indictment of these candidates, their supporters, and their enabling political party. What a fuckin’ shitshow.

Them’s fighin’ words

-the entire state of NC

Friendly reminder to turn on subtitles for Primitive Technology videos - they often contain much needed context

I think we’re gonna get there fairly soon. Lemmy.world only started on June 1. I joined a week ago when there were 1-2k users. Now there’s almost 30k.