MAROKO133 Hot ai: Chinese automaker’s SUV sets Guinness World Record with 68.6-foot ice ra

📌 MAROKO133 Hot ai: Chinese automaker’s SUV sets Guinness World Record with 68.6-f

Chinese automaker Changan has made headlines after its 4th-generation CS75 Plus gasoline-powered SUV set a Guinness World Record for the longest jump on an ice ramp, soaring 68.6 feet in an extreme cold environment of -22°F. 

The CS75 Plus is equipped with Changan’s Tianshu Intelligent All-Domain Safety System, which integrates electronic stability control (ESC) and a traction control system (TCS). 

The TCS continuously monitors wheel dynamics and can intervene in real time to prevent slippage, ensuring precise handling during challenging maneuvers such as high-speed jumps on icy surfaces. This record demonstrates both performance and advanced safety technology that Changan is incorporating into its SUVs.

Pairing quick acceleration with good fuel economy

The 4th-generation Changan CS75 Plus comes with two engine options, a 1.5T and a 2.0T, offering a balance of performance and efficiency for modern SUV drivers. The 1.5T model is powered by Changan’s Blue Whale 1.5T engine with high-pressure direct injection, delivering 189 hp and 229 lb-ft of torque. 

It is also paired with an Aisin 8-speed automatic transmission, enabling a 0–62 mph sprint in 7.9 to 8.9 seconds depending on the trim. Fuel efficiency is rated at 34 mpg combined, making it a practical choice for everyday driving while still offering responsive acceleration and confident handling, CarNewsChina reported.

For drivers seeking more power, the 2.0T version of the Changan CS75 Plus delivers a commanding 229 hp and 288 lb-ft of torque. Like the 1.5T model, it is paired with an Aisin 8-speed automatic transmission, allowing the SUV to accelerate from 0 to 62 mph in just 7.3 seconds. 

This engine provides strong performance for highway merging, overtaking, and spirited driving, while maintaining smooth and responsive handling. Combined with advanced safety features and a refined chassis, the 2.0T CS75 Plus balances everyday practicality with the extra power and confidence that more performance-oriented SUV drivers demand.

CS75 Plus sees major updates across four model years

Since its debut in September 2019, the Changan CS75 Plus has evolved through four generations, continually refining its design, performance, and technology. The second-generation model arrived in 2022, followed by the third in 2023, with the fourth generation launching in 2024 – with each iteration introducing updates in styling, powertrain options, and safety features.

The latest model comes with a built-in iFlytek Spark AI large language model, offering an intelligent voice assistant to control in-car functions and enhance the driving experience. It also features Level 2 advanced driver-assistance systems, including adaptive cruise control, lane-keeping assistance, and automated emergency braking. 

Practicality is a focus as well, with 21 thoughtfully designed storage compartments spread throughout the cabin, keeping personal items organized and within easy reach. The trunk offers 25.6 cubic feet of space, which can be expanded to 57.2 cubic feet, providing ample room for luggage, groceries, sports gear, or larger cargo, making the CS75 Plus well-suited for both daily commuting and longer family trips.

🔗 Sumber: interestingengineering.com

📌 MAROKO133 Hot ai: 300-million-year-old brain rhythm links humans, birds, and liz

Sleep looks peaceful on the outside, but inside the brain, it is anything but quiet. Neurons pulse, blood flows, and hidden rhythms rise and fall like slow ocean tides. 

For decades, scientists believed that one of the slowest of these rhythms, called the infraslow brain rhythm, was a special feature of mammals, closely tied to deep, non-dream sleep. However, a new study suggests the rhythm isn’t exclusive to mammals. 

By recording brain activity in lizards, researchers have uncovered the same ancient rhythm in reptiles, suggesting that this key part of sleep evolved more than 300 million years ago — long before mammals even existed. Moreover, they recorded the same rhythm in birds, proving that it is a common feature among complex organisms.

This discovery challenges how scientists think about the origins of sleep and hints that the basic machinery of sleeping brains is far older and more universal than anyone suspected.

Going deep into the origins of sleep

Understanding sleep has always been difficult because it leaves no fossils behind. Scientists can’t dig up ancient brains, so they’ve had to infer how sleep evolved by comparing living animals. 

Until now, that comparison was incomplete, largely focused on warm-blooded animals like mammals and birds. Reptiles, which are cold-blooded and evolutionarily older, remained a missing piece of the puzzle. 

That gap made it hard to know whether different sleep states, such as REM and non-REM sleep, evolved recently or were inherited from a common ancestor. This new work finally fills in that missing chapter.

The project began more than a decade ago, when neuroscientist Paul-Antoine Libourel joined a sleep research team in Lyon to explore the question: where did sleep states come from? To find the answer, his team turned to reptiles, which split from the evolutionary line leading to mammals and birds around 300 million years ago.

Recording brain activity in lizards, however, is far from easy. Some species are small, delicate, and highly sensitive to stress. Standard lab equipment is too bulky and power-hungry. 

To overcome this, the researchers worked with engineers at the Lyon Institute of Nanotechnology to build a tiny, low-power brain recorder called a biologger. Small enough to be worn comfortably, the device can record brain signals, heart rate, breathing, muscle tone, and eye movements — all at the same time. 

This technology later became the foundation for a startup company, Manitty, and is now used to study sleep in animals and humans in real-world environments.

Testing biologger on lizards and others

Using these custom-made devices, the team recorded sleep activity in seven lizard species, including geckos, chameleons, agamas, and bearded dragons. They didn’t just track brain waves. They also measured how the animals’ hearts slowed, how their breathing changed, and even how blood flow in the brain rose and fell. 

In some cases, they used functional ultrasound imaging to directly observe changes in brain blood vessels, both in lizards and in mice, allowing them to compare species side by side. When the researchers analyzed years of data, a striking pattern emerged. 

Across reptiles, birds, rodents, and humans, the brain showed the same slow rhythm, cycling over tens of seconds. This infraslow rhythm wasn’t limited to neurons; it involved the whole body, including blood circulation and physiological signals. 

In mammals, this rhythm is strongly linked to non-REM sleep, the phase associated with dreams, physical restoration, and brain maintenance. Finding it in reptiles revealed that this rhythm is not a recent innovation, but a deeply conserved feature of animal sleep.

“This rhythm involves not only brain activity but also physiological processes and peripheral vascularization, indicating that it is a global, organism-wide rhythm,” Libourel said.

The significance of infraslow brain rhythm across species

If reptiles share this infraslow rhythm with mammals and birds, it means that some core functions of sleep appeared very early in vertebrate evolution. One possibility is that the rhythm helps the brain clean itself by moving cerebrospinal fluid that washes away metabolic waste — a process already proposed for mammals. 

Another idea is that the rhythm causes brief fluctuations in alertness, allowing sleeping animals to periodically check their surroundings and reduce the risk of being eaten.

At the same time, the findings challenge how sleep stages are defined. In humans, sleep is neatly divided into REM and non-REM stages, with dreaming strongly linked to REM sleep. Reptiles do not appear to organize sleep in the same way.

“This does not imply that reptiles do not dream; rather, it suggests that their sleep-state organization differs from that of mammals, despite sharing some conserved processes such as the infraslow rhythm,” Libourel added.

Also, while the rhythm looks similar across species, scientists still don’t know whether it serves exactly the same purpose in reptiles as it does in mammals. Proving this will require experiments that directly test how the rhythm affects brain cleaning, vigilance, and survival.

Next, the researchers plan to expand their studies to other animal groups, including amphibians and fish, and to dig deeper into the biological mechanisms that generate the infraslow rhythm.

By tracing sleep back to its deepest roots, they hope to uncover why sleep is so essential and why evolution has guarded it so carefully for hundreds of millions of years.

The study is published in the journal Nature Neuroscience.

🔗 Sumber: interestingengineering.com