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Heatwave: cooling down myself ๐Ÿ‘–๐Ÿ’ฆ๐Ÿ˜ #jeans #pissedjeans #bombersjacket

56,583 views โ€ข 2 years ago โ€ขvia X (Twitter)

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Before we get into that ingenious cooling stunt, let's first meet the star of the story: Yuncheng (่ฟๅŸŽ), north China's Shanxi Province. This seemingly low-key city actually has a few remarkable identities that may completely change the way you see it. China's "No. 1 City of National Treasures" Yuncheng is home to 100+ cultural heritage sites under national-level protection, with an astonishing concentration of ancient architecture. Step into almost any county in the area, and you may come across a temple, pagoda, or mural that has survived a thousand years. East Asia's Oldest Paleolithic Site? It is home to one of the earliest known Paleolithic sites in East Asia, dating back approximately 1.8 million years. Some European studies even suggest that the site may be more than 2.4 million years old. Salt Lake City, meet your Chinese twin Yuncheng is home to a salt lake spanning roughly 154 square kilometers, with a salt-harvesting history stretching back some 4,000 years. Salt Lake City, meet China's Salt Lake City. Perhaps it's time to make this a sister-city relationship, Salt Lake City Government ? And its waters are actually saltier than those of the Dead Sea, buoyant enough to let a person float effortlessly on the surface. The only thing that doesn't float here is its fame. Hometown of Guan Yu (ๅ…ณ็พฝ) China's legendary warrior saint, Guan Yu, was born there more than 1,800 years ago. Celebrated for his unwavering loyalty and valor, and immortalized by the tragedy of a fatal misjudgment in his final years, he went on to influence Chinese culture for nearly two millennia. Even today, countless temples across China dedicated to him remain active, from Taiwan to Xinjiang. By all accounts, Yuncheng has no shortage of history and culture worthy of making headlines. Yet what recently propelled the city into the national spotlight was not its cultural heritage, though. It was the rooftop of an ordinary residential complex-where it suddenly began to "rain." This summer, a punishing heatwave has swept across Europe, while much of China has also been gripped by prolonged high temperatures. Against this backdrop, an unusual cooling system that sends a fine mist drifting down from above has captured nationwide attention. According to the property developer, the system was officially put into operation in August 2024. Each building, 100 meters tall, is equipped with more than 200 high-pressure misting nozzles installed along the rooftop. The fine droplets absorb heat as they evaporate, helping to lower the surrounding temperature. The system enters regular operation each June, with a single cycle lasting about 10 minutes. My colleagues took on-site measurements. Before the system kicked in, the ground temperature within the complex had climbed to 44 degrees Celsius. Once the system began operating, clouds of fine spray descended from above. Children opened umbrellas and played in the artificial "rain." After the spraying cycle ended, measurements showed that the ground temperature had fallen to around 33 degrees Celsius, while the temperature within the mist-covered area dropped significantly, turning a sweltering afternoon into something noticeably cooler and far more comfortable environment. According to the property management, the operating costs are fully covered by the community's shared property-management budget, meaning residents pay nothing extra. The system draws on ordinary tap water. Because the droplets are so fine, most of the water evaporates before it ever reaches the ground. Beyond cooling the air, it helps reduce dust and provides some irrigation for nearby greenery, allowing the same water to serve multiple purposes. This residential community is not the only place experimenting with creative ways to cope with extreme heat. As high temperatures continue, cities across China are introducing increasingly practical and locally adapted cooling measures. In Beijing, Turpan, and many other cities, air-conditioned service stations have opened their doors to sanitation workers, delivery riders, and other outdoor workers. These stations provide watermelon, chilled drinks, ready-to-eat food, and heatstroke-prevention supplies, all free of charge. In some locations, field workers have also been equipped with cooling vests and other protective gear designed for extreme heat. Kaifeng (ๅผ€ๅฐ), in central China's Henan Province, has taken an approach that carries a touch of romance all its own. About a thousand years ago, Kaifeng served as the capital of China, during a period when science and technology, urban civilization, and the visual arts flourished. Today, the city is home to several large theme parks and has become one of China's major cultural tourism destinations. Some have even dubbed it "China's Orlando." Kaifeng is also renowned for its watermelons. This year's bumper harvest, however, has left some local growers struggling to find enough buyers. In response, several theme parks have stepped in to purchase large quantities of local watermelons in bulk. The initiative helps farmers expand their sales channels, and allows the parks to hand out thousands of kilograms of free watermelon to visitors each day, offering a refreshing respite from the summer heat. From mist raining down on rooftops, to icy drinks pressed into the hands of delivery riders, to free watermelons handed out by the truckload-different cities, one shared answer. Fighting the heat doesn't always take billion-dollar mega-projects. Sometimes, it just takes a little imagination, and a lot of heart. It might be a shower of mist falling from a rooftop, a wearable cooling suit, or a slice of freshly cut, ice-cold watermelon. What's the coolest heat-relief idea in YOUR city? Drop it in the comments, let's see who wins summer. (And to our friends in the Southern Hemisphere and Alaska-tell us your winter survival tricks instead. We'll need them in Decemberโ˜•)

Zhai Xiang

13,477 views โ€ข 2 days ago

So many peopleโ€”myself includedโ€”are drawn to the climate movement because they want to help people. They care, want to help the poor, and save the planet. But what they don't understand is that the climate movement is doing the exact opposite of what these well-meaning activists want to accomplish. The movement vilifies reliable energyโ€”the single biggest driver of getting people out of poverty. Over the past several decades, weโ€™ve spent trillions on an energy transition away from fossil fuels. The result? Weโ€™ve made our energy system less reliable and more expensive. Western countries have also practiced climate colonialism by preventing Africa from developing with natural gas, coal, and oil. (This goes against everything climate activists claim to stand for!) This is the most morally inverted movement ever. Right now, a billion people don't have access to reliable energy. That means women are spending their entire day figuring out how to get fuel to cook their food. Children in these settings are not going to school, theyโ€™re spending hours collecting wood or walking to get water. All of that is a symptom of energy poverty. This is when climate activists will say โ€œbut the planet is burning!โ€ Just no. The planet is not burning. Yes, we've added CO2 to the atmosphere and seen about ~1ยฐC of warming over 150 years. But 95% of CO2 is naturally occurring and historically, warming periods are when humans flourish. The Medieval Warm Period (900โ€“1300 AD) is a great example. It was 0.7-1ยฐC warmer and populations boomed. They then collapsed during the Little Ice Age. Takeaway the climate hysteria and objectively you would choose to live during a warming period over a cooling period. The rest of the data is reassuring: โœ…Globally hurricanes rates are slightly declining โœ…Tornadoes are down โœ…Sea level rise is a manageable ~3mm/year โœ…Global greening is up 15โ€“40% since the 1980s โœ…10x people still die from cold than from heat In the West the first time students hear about our energy system is within the context of โ€œfossil fuels are burning the planet.โ€ Theyโ€™re never taught that itโ€™s an amazing technology that has lifted billions out of poverty. I considered this a huge injustice. We need to pivot away from climate hysteria toward one goal: ending energy poverty and expanding access to energy. If youโ€™re still gripped by climate fear and anxiety, Iโ€™m sorry you are a victim of this fear narrative. But it's time to get out.

Lucy Biggers

31,322 views โ€ข 21 days ago

Elon Musk literally sat down for a 45-minute talk with Y Combinator that explains how to build world-changing companies better than any business school on earth. This is the advice he gave a room full of young founders: 1. Don't try to build something great. Try to build something useful. Everyone obsesses over greatness. Musk says that's the wrong target. "I didn't originally think I would build something great. I wanted to try to build something useful. I didn't think I would build anything particularly great. Seemed unlikely, but I wanted to at least try." Aim for useful first. Greatness, if it comes, is a byproduct. 2. When you can't get in the front door, build your own door. Before Musk started his first company, he tried to get a job at Netscape. "I sent my resume into Netscape and nobody responded. I tried hanging out in the lobby to see if I could bump into someone, but I was too shy to talk to anyone. So I'm like, this is ridiculous, I'll just write software myself." He didn't set out to be a founder. He became one because no one would hire him. 3. He slept in the office and showered at the YMCA. The origin of his first company was not glamorous. "We couldn't even afford a place to stay. The office was 500 bucks a month, so we just slept in the office and showered at the YMCA." He couldn't afford proper internet either, so he drilled a hole through the office floor and ran a cable to the internet provider downstairs. That was the founder of the future richest man on earth. 4. Keep the chips on the table. When Musk sold his first company, he received a $20 million cheque. His bank balance went from $10,000 to $20 million overnight. Most people would have stopped. He put almost all of it straight back into his next company. "I kept the chips on the table." He did the same thing decades later, over and over. He hates money sitting idle. Money is fuel for the next mission. 5. Start with the mission, then work backwards to make it a business. Musk didn't start SpaceX to make money. He went on the NASA website to find out when humans were going to Mars, and there was no plan. So he decided to build one. "There had been no prior example of a rocket startup succeeding. A small chance of success is better than no chance of success." The mission came first. The business model came later. 6. He started SpaceX expecting to fail. He is brutally honest about the odds. "SpaceX started in mid-2002 expecting to fail. Probably 90% chance of failing. When recruiting people, I said, we're probably going to die, but small chance we might not die." The first three launches failed. The fourth one worked with no money left. "If the fourth launch hadn't worked, it would have been curtains. We made it by the skin of our teeth." 7. Break every problem down to physics. This is the core of how Musk thinks. "First principles means break things down to the fundamental elements that are most likely to be true, then reason up from there, as opposed to reasoning by analogy." His example is rockets. Everyone priced them based on what old rockets cost. Musk asked what a rocket is actually made of, priced the raw metals, and found the materials were only 1-2% of the historical price. The rest was inefficiency he could attack. 8. When told something takes 24 months, break it down and do it in six. Last year xAI needed a giant computer to train its AI. Suppliers said it would take 18 to 24 months. "It's like, well, we need to get that done in six months or we won't be competitive." So he broke it into parts. Needed a building, so he found an old factory. Needed power, so he rented generators. Needed cooling, so he rented a quarter of America's mobile cooling capacity. He slept in the data centre and ran cabling himself. It got done. 9. Watch your ego-to-ability ratio. Musk's single sharpest piece of advice for young founders is about staying honest with yourself. "A major failure mode is when your ego-to-ability ratio gets too high. Then you break the feedback loop to reality." Keep the ego small, internalise responsibility for everything, and stay ruthlessly connected to what's actually true. "You want to close the loop on reality hard. That's a super big deal." 10. Chase work, not glory. His closing philosophy ties it all together. "It's so hard to be useful. The area under the curve of total utility is how useful you've been to your fellow human beings times how many people. If you aspire to do true work, your probability of success is much higher. Don't aspire to glory, aspire to work." He was ridiculed for years. The press called him "internet guy attempting to build a rocket company." He agreed it sounded absurd. He did it anyway, because a small chance of doing something useful beat no chance at all. Here's the thing though.... Musk became the most followed founder alive because everything he does happens in public. The launches, the failures, the talks like this one. The companies made him powerful. The personal brand made his every word travel around the world before he finishes saying it. We build massive distribution and grow personal brands on X and beyond without our clients lifting a finger. If you're a founder or VC looking for that kind of exposure, book a call below. We average 1.5M views a week.

Lewis ๐Ÿด๓ ง๓ ข๓ ท๓ ฌ๓ ณ๓ ฟ

655,966 views โ€ข 15 days ago

I have yet to see, in the history of Royalty, any sit-down interview between a Royal and the press about their personal lives that has turned beneficial for the royal. It has NEVER yielded any benefit to any Royal. And yet here we are with Haakon and Mette๐Ÿ˜ตโ€๐Ÿ’ซ In his Desperation to defend his wife, Crown Prince Haakon said during his wife's interview that "his wife called him while she was visiting Epstein at his home in Florida for 4 days in 2013. Even worse, he admitted that: "I knew that they know each other and met in the US. The Crown Princess showed him Frogner Park. I met him myself on holiday in St. Barts on the street and I knew that she lived in the house in Palm Beach. So this was no secret between us.โ€œsecret๐Ÿคฏ OMG...what an absolute imbecile this simp is...๐Ÿคฆ๐Ÿพโ€โ™€๏ธ How do you implicate yourself into a crisis that had nothing to do with you and make things worse when the goal of this interview was to attempt to contain the crisis for your wife??! ๐Ÿคก When we say "Weak men creates Hard times" Haakon is the poster boy for it. He does not care about his aging parents and how all this scandal is affecting them; he does not care about the monarchy's future nor the Norwegian public; All this sap cares about is pleasing Mette-marit, even if it means throwing the entire monarchy in a pit of fire. Men like that are too weak mentally and too easily manipulated to lead anything, let alone sit as King for a country. Therefore, worse than Mette not being fit to be Queen, this interview has demonstrated that Haakon and his moronic blind love for his manipulative wife, makes him unfit to be King. When he ascends as King, it is actually Mette who will be leading the Monarchy through him, so truly this couple is making a very strong case for the antimonarchists and Pro-republic of Norway.๐Ÿ‘Œ๐Ÿพ This is the type of Gold opportunity that the Pro republic in the UK are salivating for, but Prince William and Princess Catherine are not giving them any breathing room to exist..๐Ÿ˜ ๐Ÿ“นNRK via ChristinZ

Canellecitadelle

42,010 views โ€ข 3 months ago

I honestly believe SpaceX is going to be the BIGGEST IPO the stock market has ever seen and I donโ€™t think the market and many people fully understands whatโ€™s coming yet. People keep throwing around numbers like $1-1.5 trillion, which already sounds massive (Teslaโ€™s market cap today is $1.5T). But from what Iโ€™ve researched over the years and being invested heavily in the company for many years, this number feels like the floor. As of December 2025, SpaceX was valued at ~$800 billion in an insider private share sale. The company does this every now and then to allow internal employees that have been with the company for a long time to have some liquidity since the company is private fyi. IPO plans are expected in 2026, w/ early chatter targeting $1-1.5 trillion, potentially raising $30B+, which would already make it the largest IPO in history, beating Saudi Aramco! But there is so much more that is happening underneath. Check out Starlink for example. โ€ข Revenue was about ~$15B in 2025 โ€ข Expected to grow to $22-24B in 2026 โ€ข 9M subscribers today, and I think it will double in 2026 โ€ข By 2030, Starlink could realistically be doing $50B+ per year This technology will be powering global connectivity, aviation, ships, rural areas, governments, militaries, schools, hospitals, AI backhaul, disaster zonesโ€ฆ places fiber will never reach. Put a conservative 10-20 multiple on that, Starlink ON ITS OWN could justify a $500B-$1T valuation. Then, you add the fact that SpaceX is the ONLY company today that owns the road to space bc of cost effective reusable rocketsโ€ฆ it changed everything. Today, SpaceX can launch payloads for ~$100 per kg to orbit, while everyone else is still at $5,000+ per kg! There is literally no competitionโ€ฆ To dumb it down, itโ€™s like SpaceX owning the railroads in the 1800s, with Amazonโ€™s logistics network, and Appleโ€™s ecosystem, and more. Itโ€™s absolutely clearโ€ฆ if you want to go to Space or do anything there, you have to go through SpaceX. This gives them full control over: โ€ข Satellites โ€ข Space stations โ€ข Data centers โ€ข Lunar missions โ€ข Mars missions โ€ข And whatever the future of Space is This kind of advantage deserves a MASSIVE valuation premium. Then, there are markets SpaceX hasnโ€™t even unlocked yet and this is where valuations start to break peopleโ€™s brains and spreadsheets. 1/ Point-to-point Earth travel like New York to Shanghai in under an hour. Even grabbing just 10% of long haul travel is a $ hundreds-of-billions market. 2/ Space based data centers with essentially unlimited solar power, natural cooling, no land constraints, no regulationsโ€ฆ remember AI needs a lot of energy and Space has plenty of it. 3/ Getting to Mars and building brand new economies. Whoever controls transport controls the economy that follows. Just imagine building another Earth economy on MANY planets. This is why $1.5T feels way too low to me. At $22-24B in revenue, a tech growth multiple already gets you $1-2T. And then add the fact that SpaceX is compounding infrastructure across multiple $ trillion dollar marketsโ€ฆ if revenue scales toward $100B+ in the next decade, which is VERY realistic btw, youโ€™re no longer talking about a $1.5T company. Youโ€™re talking $3T, $5T, $10T+, even $100T+ over time. I see SpaceX as the gateway to the next economy for humanity. Earth is a ~$500T asset when you add up everything and SpaceX is about to expand and multiply that pie. So when people say โ€œBroโ€ฆ $1.5T IPO?! Youโ€™re crazyโ€ฆโ€ I just nod, smile, and think to myself that this is where the story is just beginning.

Teslaconomics

116,239 views โ€ข 6 months ago

My fox shooting garden defending AI robot is finally done and WORKING! ๐Ÿคฉ (Donโ€™t worry it only shoots ๐Ÿ’ฆ water) After months of slowly moving forward with each part I finished the last step to train a TensorFlow model on the footage of the ๐ŸฆŠ fox I collected hours of footage ๐Ÿ“น with the fox roaming around my garden, from this I labeled around 2000 images with the fox by hand โœ‹ Honestly, I was quite skeptical training the model was actually gonna work, maybe this was partly the reason I avoided working on this until the very end. If I couldnโ€™t train a model to detect the fox, this whole robot would never be able to function properly. On the flipside though, with no previous experience in hardware or electronics there was a bit of a learning curve and I didnโ€™t want to end up labeling thousands of images, training a TensorFlow model, only to fail on building the hardware. As I started building, I realized that mixing hardware and software adds quite another dimension to debugging things. At times I wasted hours debugging code in my IDE, only to realize the issue was somewhere in the electronics. Furthermore, combining this side project with a full time job and a young family, is not always easy. It can be quite frustrating, to know you only need 4 hours of concentrated effort for a small task, having to spread it out across a week of 20min increments. Then, a few months into the build I noticed the fox had stopped coming to my garden, in fact one day, I recorded her walking with 3 cute little ๐Ÿถ pups, and the next day I saw her moving out of my garden completely. Did she know I was building a robot? I had this strange mix of feelings, happy my garden was safe from poop and digging, happy she was safe with her pups, but how was I gonna finish this project if my robot had no fox to detect? For sure they would be back next year, I figured I could postpone the whole thing until next winter, but I also knew it was gonna be much harder to pick up momentum if I did let it sit there for six months. So I decided to keep working, hoping the fox would reappear,.. but she never did. As I finished labeling the footage and started training my model, I could finally see the mAP results, quantifying the precision of my object detection model. It was measuring at 78% across different metrics on detecting my fox. I quickly ran the model on some of the video footage I got from my fox. Inference speed took a hit, but it did a near perfect job detecting the fox, even when she was deep down in the grass or wizzing past in a motion blur. It took me by surprise how well it worked. With the default model I had to drop my confidence threshold way down to 15%, to recognize the fox as ๐Ÿฆœโ€œbirdโ€ in one or two frames, with my custom model it followed the fox all the way down to the back of the garden! Still this didnโ€™t solve the issue of there being no actual fox in my garden and how was I gonna wrap this project in a short timeframe. I played with the idea of putting a fox toy ๐Ÿงธ on an RC ๐Ÿš— car, or borrowing a dog to run around the garden to test. Friends suggested I run around the garden in a fox costume.. what a ridiculous idea. I wasnโ€™t really feeling the idea of running around the garden in a floppy cloth fox ๐ŸŽญ costume, but had a look anyway. I came across these self inflating costumes. This actually could be perfect. Since itโ€™s inflated, it would hold its shape super well, making it much easier to label, train and be recognized by my robot. So I got the costume and shot a time lapse of myself as a fox walking around the garden. I labeled it to around 600 images. Ran the model training again and got a mAP result of 82%. This was even better than my real fox! At this point I knew this was gonna work. So hereโ€™s the final ๐ŸŽฅ video, just having some fun with it. Iโ€™ll update here whenever the real fox does come back. On a final note, Iโ€™m looking for (remote) jobs in these fields of AI now: - object detection - visual generative AI - 3D (nerfs + gaussian splats) So if you know anything let me know! My DMs are open ๐Ÿ˜Š

Jeroen Pixel

55,797 views โ€ข 2 years ago