A smart robot earning money with its street skills
An intelligent robot in a public space collects small payments by offering various services to passers‑by — such as professionally writing names, drawing, and taking photos with visitors for a symbolic fee.
The scene reflects the growing use of interactive robots in everyday life.
WOW🚨: A 10 years old Japanese child tested butterflies' memory and discovered that metamorphosis does not erase the memories from when they were still caterpillars.
🦁 The 40,000-Year-Old Mystery Hidden in a Cave
For more than 70 years, a tiny piece of carved mammoth ivory sat unnoticed after being discovered in Germany’s Vogelherd Cave. It seemed insignificant—just another fragment from a distant past.
Then archaeologists made a stunning discovery.
The small piece perfectly matched a prehistoric figurine found at the same site in 1931. When researchers carefully joined the fragments together, an incredible secret emerged. What had once appeared to be a simple carving was actually a fully three-dimensional lion, skillfully sculpted by human hands around 40,000 years ago.
Think about that for a moment.
At a time when Europe was covered by Ice Age landscapes and mammoths roamed the land, early modern humans were already creating sophisticated works of art. Using only primitive tools and a mammoth tusk, an unknown artist transformed ivory into a lifelike figure that survived tens of thousands of years hidden beneath the earth.
Who was the artist? What inspired them to carve a lion? Was it a symbol of power, a spiritual figure, or part of a story now lost forever?
We may never know the answers. But this remarkable sculpture remains one of the oldest known examples of figurative art ever discovered—a silent message from a mind that lived 40 millennia ago.
In 2021, a two-word phrase got banned in China. Four years later, it has five successors and nobody can stop any of them.
It started when Luo Huazhong posted "Lying Flat Is Justice" on Baidu Tieba. Within weeks, the post was deleted. A state editorial called lying flat "shameful." An anchor went on Bilibili and asked whether young people now expected no pressure at all.
Then someone at the very top warned against "involution and lying flat" in the flagship theory journal. By the time leadership is publicly arguing against your meme, your meme has won. Every official rebuttal ratified the term it was trying to bury.
By 2022, tang ping had a sequel. Bai lan: "let it rot," which goes further by actively embracing decline instead of merely opting out. In March 2023 came Kong Yiji literature, named after a 1919 Lu Xun story about a failed imperial exam scholar too proud to take manual work.
Young graduates started calling themselves modern Kong Yijis, the "long gown" being their useless degree. An editorial told them to take off the gown and work harder. That only made the meme spread further. By 2025, a new variant: lao shu ren, "rat people," young workers who proudly do as little as possible.
Each new word makes the next one easier. You don't get a march. You get a vocabulary, and the vocabulary multiplies.
Fertilization is not random, and the fastest sperm does not always win: in reality, the egg decides who succeeds.
While for decades we were taught that fertilization is a race won by the fastest sperm, a study published in Proceedings of the Royal Society B shows how human reproduction actually works.
Scientists analyzed follicular fluid from 60 couples undergoing fertility treatment at St Mary's Hospital in Manchester, UK. They discovered that the egg releases chemical signals (chemoattractants) that actively attract sperm from certain men over others.
Through these chemical signals, the egg exerts its own biological selection, influencing which sperm manage to get close. The egg appears to favor sperm that offer optimal genetic compatibility with its own genome — particularly in genes related to the immune system — which may help produce healthier offspring.
Interestingly, this cellular preference does not always align with the couple’s conscious partner choice. In many cases, eggs showed stronger attraction to sperm from non-partner males.
This chemical communication demonstrates that female biology continues to evaluate and select options even after intercourse. Understanding this process could lead to more precise solutions for unexplained infertility. Science continues to reveal the remarkable level of biological interaction that occurs during reproduction.
[Fitzpatrick, J. L. et al. (2020). Chemical signals from eggs facilitate cryptic female choice in humans. Proceedings of the Royal Society B, 287(1928), 20200805. DOI: 10.1098/rspb.2020.0805]
An Airbus A380 climbing through the
clouds and leaving behind spectacular wingtip vortices. These swirling trails are created by pressure differences between the upper and lower surfaces of the wing and become visible when moisture in the air condenses.
📹: schipholhotspot