大地雄心

专业的电力供应服务承包商

[大地雄心 @chenyong3757]

这个体积和太阳系一样大

[Black Hole @konstructivizm]

Discovery of a New Type of Cosmic Object: Black Hole Stars

Astronomers using the James Webb Space Telescope have identified an unusual object in the early universe that resembles neither a normal star nor a classic black hole. They are calling it a black hole star.

The object, designated MoM-BH*-1, appears as an enormous star roughly the size of the Solar System. It glows a brilliant red and radiates about 100 billion times more energy than any known star can produce through nuclear fusion. Such extreme luminosity is far closer to the output typically associated with black holes.

Spectral analysis reveals a central black hole with a mass of around 100,000 Suns, enveloped in a dense cocoon of hot hydrogen. This surrounding gas reprocesses the radiation from the black hole, giving the object its star-like appearance, distinctive red color, and a pronounced spectral feature known as a deep Balmer break. The light contains almost no metals—only hydrogen and helium.

The object is observed as it existed just 660 million years after the Big Bang, when the universe was still very young. Similar bright red points appear frequently in deep Webb images from that era and had remained mysterious until now. Many of them may turn out to be black hole stars—young black holes tightly wrapped in gaseous envelopes.

As the black hole gradually consumes the surrounding gas, the envelope disperses and the object fades. This naturally explains why such red dots are rarely seen in the present-day universe.

The discovery offers new insight into how supermassive black holes could have grown so rapidly in the first hundreds of millions of years after the Big Bang. These hybrid objects may represent an important intermediate stage on the path to the giant black holes that now sit at the centers of most large galaxies.

Black hole stars highlight just how diverse and unexpected the physics of the early universe can be. Future observations will help determine how common these objects were and what role they played in shaping the cosmic structures we see today.

[动物园园长 @weiyux2021]

国产绝不踩坑的8大神级平替：

1. ​​吸尘器​​——戴森三四千，小狗做了20年吸尘器，31000帕吸力，几百块搞定。

2. ​​吹风机​​——戴森两三千，科西13万转高速马达，200多。

3. ​​高端锅具​​——双立人纯钛铁锅一千多，给双立人代工的三禾只要小几百。

4. ​​洗地机​​——市面上两三千的，德尔玛能弹能喷、吸力大、高温自清洁，几百块。

5. ​​人体工学椅​​——动辄两三千，联丰靠背多档调节、延长脚托、带风扇散热，两三百；宜家阿勒夫耶一千多，联丰300不到。

6. ​​行李箱​​——新秀丽1000多（ABS+PC材质），悠客给新秀丽和外交官代工，24寸铝框才100多。

7. ​​电饼铛​​——利仁从95年开始专做，30年老品牌，网上几百万条评论，很多大牌在模仿它，价格还比利仁贵。

8. ​​保温杯​​——哈尔斯是国产保温杯上市企业，品质样式不输大牌，价格亲民。

[大地雄心 @chenyong3757]

@maoshen 胖东来究竟怎么样？看顾客反应就是了，顾客觉得这个超市好就行了，其它质疑，没有必要，这本来就不是正常的经济社会，任何能生存下来的公司，几乎都有劣币行为，但是上帝也说了，为生存而去做的一些事，不是罪。😀

[大地雄心 @chenyong3757]

@XiaoJi0403 接触过不少房东，他们底子里有地主思维，看租客是不能摆正自己的位子的，平等是不存在的，你赚钱，是我这块地给你赚的，所以这种事发生有普遍性，关键还是国民思维局限性问题。

[大地雄心 @chenyong3757]

@XiaoJi0403 80386几万元一台，工资几十元一个月，当时在北京中科院计算机所学习，老师们拿着买菜的篮子装着工具帮人修电脑，一台主板维修费500元。想着学会这技术，一辈子有饭吃了，没想到电脑技术发展太快，这技术白学了。😅

[Airforce Geek @PrecisionLabs0]

This is what Chicago looks like from a Thunderbirds F-16 cockpit. 🇺🇸✈️

Downtown skyscrapers, Lake Michigan, and then suddenly—the entire skyline is sideways.

This cockpit POV captures the precision behind a Thunderbirds demonstration as the F-16 rolls hard over the city, with the pilot making constant control inputs while flying the routine.

The Thunderbirds return to the 2026 Chicago Air & Water Show, August 15–16.

If you're watching from the lakefront, where’s the best spot to see them? 👀

[大地雄心 @chenyong3757]

@LiuZhongjing 特佩服你谈历史。👍

[大地雄心 @chenyong3757]

@mafang71 三十年前，我还是月光族，人生都是被逼出来的。😀

[大地雄心 @chenyong3757]

@XiatouJ20547 不错。

[大地雄心 @chenyong3757]

@maoshen 永辉学胖东来，看得见的比过去强多了，天地之别

[大地雄心 @chenyong3757]

@lanhubiji 一条是欲望之路，一条是信仰之路。

[大地雄心 @chenyong3757]

黄金就是这么炸出来的吧。当你手上拿着金子，它的故事人类只能仰望，膜拜。😀

[Black Hole @konstructivizm]

A supernova explosion!

Supernova SN 2023ixf was discovered in May 2023 in the spiral galaxy M101 (the Pinwheel Galaxy).
SN 2023ixf is a Type II supernova, meaning its progenitor was a massive star that, having exhausted its fuel supply, decided to go out with a bang!

🔭 Captured using a TAL-200K telescope and an ASI533MM PRO astro-camera.
Video by N. Vdovin.

[大地雄心 @chenyong3757]

@weichonginsight 于东来的事，我经历多次，你只要赚钱，房东大概率涨价。他们会计算你搬家的成本，算准你会妥协，但是我每次都选择不妥协，选择二败俱伤，但是我有平衡成本的机会，时间站在我这边，而房东输定了。😅

[大地雄心 @chenyong3757]

@SeanTian14 好像12以上都是防水的设计

[Black Hole @konstructivizm]

Cosmic Spiderwebs Are Whispering Secrets About Dark Matter’s Quiet Demise

Dark matter is the ultimate cosmic ghost: it makes up about 85% of the universe’s mass, holds galaxies together, and shapes the large-scale structure of everything we see—yet it refuses to interact with light or ordinary matter in any detectable way. For decades, physicists have chased it through gravity alone. Now a team led by David Dunsky at New York University has proposed a brilliantly sneaky new way to catch it in the act of slowly dying.

Their idea? Dark matter particles might occasionally decay into gravitons—the hypothetical messengers of gravity itself. Gravitons are almost as elusive as dark matter. But theory says that when a graviton travels through a magnetic field, it has a tiny chance of transforming into an ordinary photon via the Gertsenshtein effect. Suddenly the invisible becomes visible.

The perfect stage for this conversion is not the dense heart of the Milky Way, where most dark-matter searches focus, but the vast, thread-like cosmic filaments that form the universe’s cosmic web. These enormous structures stretch across millions of light-years, linking galaxies like the strands of a gigantic spiderweb, and they carry weak but coherent magnetic fields that fill a huge fraction of the observable universe. If dark matter is decaying into gravitons anywhere along these filaments, the gravitons can convert into a faint, steady glow of gamma-ray photons.

Dunsky’s team calculated what that glow should look like and compared it to the all-sky gamma-ray background mapped by NASA’s Fermi-LAT telescope. No unexplained excess appeared. That nondetection immediately delivered the first limits on how fast dark matter can decay into gravitons—across a vast range of possible particle masses.

What makes the approach elegant is its simplicity. It doesn’t invent exotic new physics beyond the decay itself; the conversion step relies on established electromagnetic processes. And because the signal would originate mostly from distant intergalactic filaments rather than the crowded Galactic center, it opens an entirely new observational window.

Looking ahead, a proposed next-generation instrument—the Advanced Particle-astrophysics Telescope—could tighten these constraints by a factor of ten. If dark matter really is slowly leaking away into gravitons, the universe’s own magnetic spiderweb may ultimately give away the secret.

In the end, the cosmos has been broadcasting a subtle message all along. We just needed to know where—and how—to listen.

[大地雄心 @chenyong3757]

@johndutton0412 你去查下有专门的癌症晚期群，都知道这个治疗癌症的事，但是效果是比不吃这个药的好一点点，对最后的结果一点把握也没有。我是看到的吃这个药的治疗日记，每天都有病情的记录。我也对一个晚期癌症病人尝试过，刚吃几天有效果，但是后面还是有其它各种并发症，不在医院，自己搞很难。

[大地雄心 @chenyong3757]

@dDiVul8m3g82864 早就和他们说过，必须把郭文贵从系统中清除掉，事业才有转机，还抱着这个负资产不放，只有走向死路。😀

[大地雄心 @chenyong3757]

@XiatouJ20547 小日子过得不错，这就对了。我把过去那帮农场骗子全给屏蔽了，能量都提升了。😅

[大地雄心 @chenyong3757]

@GanchengW 去金边看看红色柬埔寨，布尔波特政权杀人监狱纪念馆，你就知道越南攻入柬埔寨救了多少人。中越战争是老邓押对了宝。

[大地雄心 @chenyong3757]

@johndutton0412 你看上去是有阅历的人了，找女人和谈生意是一样的。最后还是要搞个合同比较好。😀