Le Web mondial dépend de câbles sous-marins : ces drones pourraient priver des pays d’Internet


German police disarmed a drone carrying explosives after it was discovered near Ukrainian cargo aircraft parked at Leipzig airport—and authorities are looking into the possibility of a second drone after an approaching aircraft collided with something midair.
The drone, first spotted by an airport employee, was hovering close to the ground between two parked An-124 cargo aircraft owned by Ukraine’s Antonov Airlines shortly before midnight on August 4, according to The Guardian. It had apparently been modified to help avoid detection by the airport’s drone defense sensors, said Alexander Dobrindt, federal minister of the interior for Germany, during a press conference.
Dobrindt described the drone as carrying a fist-sized package of a substance believed to be the plastic explosive Semtex. Only a failed detonator prevented the drone from exploding near the Ukrainian cargo aircraft, he said.


© Jens Schlueter/Getty Images
German police disarmed a drone carrying explosives after it was discovered near Ukrainian cargo aircraft parked at Leipzig airport—and authorities are looking into the possibility of a second drone after an approaching aircraft collided with something midair.
The drone, first spotted by an airport employee, was hovering close to the ground between two parked An-124 cargo aircraft owned by Ukraine’s Antonov Airlines shortly before midnight on August 4, according to The Guardian. It had apparently been modified to help avoid detection by the airport’s drone defense sensors, said Alexander Dobrindt, federal minister of the interior for Germany, during a press conference.
Dobrindt described the drone as carrying a fist-sized package of a substance believed to be the plastic explosive Semtex. Only a failed detonator prevented the drone from exploding near the Ukrainian cargo aircraft, he said.


© Jens Schlueter/Getty Images
Looking for an RC drone that stands out from the crowd? CZ31 Rocket-Style RC Drone combines an eye-catching rocket-inspired design with beginner-friendly flight controls, brushless motors, Wi-Fi FPV, and unique visual effects that make every takeoff feel like a space launch. Designed primarily for recreational flying, this Ready-to-Fly (RTF) quadcopter offers an entertaining experience for kids, beginners, and drone enthusiasts alike.
Unlike traditional quadcopters, the CZ31 adopts a rocket-inspired appearance complete with folding arms that resemble a futuristic launch vehicle. During takeoff, the drone enhances the illusion with LED lighting and a mist spray effect beneath the aircraft, creating a realistic rocket exhaust visual.

It’s important to note that the “rocket missile-launch” branding refers purely to the drone’s appearance and visual effects—it is designed solely as a recreational RC aircraft.
Powering the CZ31 are efficient brushless motors, which provide smoother flight performance and greater durability compared to conventional brushed motors.
Advantages include:
Combined with its 6-axis gyroscope, the drone delivers stable hovering and responsive controls, making it suitable for both beginners and casual pilots.
The CZ31 includes several intelligent functions that simplify flying:
These features help new pilots gain confidence while allowing more experienced users to enjoy quick and hassle-free flights.

The drone comes equipped with a 480P HD camera that supports 2.4GHz Wi-Fi FPV (First-Person View) transmission.
Pilots can connect the drone to a compatible smartphone to:
The FPV transmission range is approximately 30 meters, while the remote-control range extends to around 50 meters under ideal conditions.
One of the most entertaining features of the CZ31 is its one-touch mist spray system.
Using the included water dropper, users can fill the small reservoir to produce a visible mist beneath the drone. Combined with colorful LED lighting, the effect resembles rocket exhaust during takeoff, making evening flights especially enjoyable.
The spray system is intended purely as a visual effect and can operate for approximately 8 minutes after a brief activation.

The CZ31 measures approximately:
Its foldable arms make transportation and storage convenient, allowing users to easily pack the drone into a backpack for outdoor adventures.
The drone is powered by a 3.7V 1200mAh Li-Po battery, offering:
The modular battery design also allows for quick battery swaps if additional batteries are purchased separately.
The Ready-to-Fly package includes:
The CZ31 is a great choice for:

CZ31 Rocket-Style RC Drone focuses on fun rather than professional aerial photography. Its rocket-inspired styling, LED lighting, mist spray effect, brushless motors, and beginner-friendly flight controls create an engaging flying experience that stands out from conventional toy drones.
While its 480P camera and modest flight time reflect its entry-level positioning, the CZ31 offers plenty of entertainment value for recreational users. If you’re looking for a unique RC quadcopter that combines imaginative design with easy-to-fly features, the CZ31 is a compelling option for weekend flying and family fun.
The post CZ31 Rocket-Style RC Drone Review: A Fun FPV Quadcopter with Brushless Power and Immersive Rocket Effects appeared first on IGeeKphone China Phone, Tablet PC, VR, RC Drone News, Reviews.

Chinese researchers are using laser technology to vastly extend the flight time of drones, marking a significant shift in UAV capabilities.
The achievement was reported by researchers from China’s Civil Aviation University, who reported their findings in laser-based drone charging technology in a recent article published in Matter & Light.
The new drone concept utilizes a lightweight receiver, repurposing solar cell technology to absorb laser light and convert it into electricity to power a device.
“Imagine a future where drones inspecting forests, monitoring disasters, or delivering packages no longer need to land frequently to replace batteries,” said senior author Jianhua Han of Civil Aviation University of China. “As drones take on longer missions, battery life has become one of the biggest barriers.”
At the core of the breakthrough is perovskite, a class of synthetic compounds with a crystalline structure highly conducive to solar power applications. The team developed a perovskite laser cell-thermoelectric (PLC-TE) tandem device that optimizes a solar cell to accept laser energy.

The cell’s perovskite converts laser energy into electricity, which can be a messy process, as some of the power is lost as heat. The thermoelectric layer addresses this problem by capturing heat and converting it into electricity via the temperature differential between its warmer, laser-facing side and its cooler side. However, that contrast requirement can be an issue when the laser uniformly heats the entire drone, reducing the efficiency of that heat-to-energy conversion.
“When we tested the device under a high-power laser, the thermal camera showed temperatures of 80 to 90 degrees Celsius,” Han said. “That was much higher than we expected and made us realize that heat buildup was a far more serious problem than we had imagined.”
To mitigate overheating concerns, the receiver was mounted on the drone’s wings, kept separate from other components, and paired with heat-blocking technology to enable laser-to-electric energy conversion without overheating sensitive electronics.
This heat-blocking technology included nanocrystals embedded in the PLC-TE tandem device, which acted as a thermal barrier due to their poor thermal conductivity. With the nanocrystals in place, the researchers tested the conversion device on its own and observed a significant slowdown in heat flow during prolonged laser exposure, which would cool the drone overall.
This PLC-TE device was bombarded with a green laser in a laboratory experiment and converted 38.49% of the beam’s energy into electricity, a high percentage compared to other wireless charging systems in similar scenarios.
Next, the team integrated the energy conversion system onto a stationary lab drone and also added airflow channels to the wings. In subsequent laboratory tests, laser bombardment supplied sufficient energy to power the drone’s propeller, while the airflow channels effectively cooled the thermoelectric layer’s cold side, maximizing heat-to-electricity conversion.
“Previous studies largely focused on the materials or the device itself,” Han explained. “We wanted to think beyond the laboratory, to how the system could actually be integrated into an aircraft, cooled during operation, and made compatible with flight. It isn’t just a materials science problem; it’s an engineering one.”
Work continues on this wireless drone charging system, with outdoor flight tests on a lightweight frame scheduled. These will be paying particular attention to the system’s reliability under real-world outdoor conditions. However, the team notes that energy conversion efficiency will not be their sole research area, as the accuracy of laser tracking will be essential to the system’s safe operation.
“Our work demonstrates the possibility of ‘refueling aircraft with light,’” Han concluded. “Going from 1 to 100 will require solving many engineering challenges, but we hope this provides a starting point for future development.”
The paper, “Sb2Se3 Nanocrystals Enable Efficient Perovskite-Thermoelectric Tandem Devices for Laser-Powered Unmanned Aerial Vehicles,” appeared in Matter & Light on July 29, 2026.
Ryan Whalen covers science and technology for The Debrief. He holds an MA in History and a Master of Library and Information Science with a certificate in Data Science. He can be contacted at ryan@thedebrief.org.
YH Toys YH18001 PRO is a compact yet powerful 1/18-scale brushless RC monster truck designed for enthusiasts who want high-speed performance without stepping up to a larger and more expensive platform. Featuring a 4300KV brushless motor, 4WD drivetrain, metal drivetrain components, and a claimed top speed of 70km/h, the YH18001 PRO promises an exciting driving experience on a wide variety of terrains.
Whether you’re new to the RC hobby or looking for a portable off-road basher, the YH18001 PRO packs impressive specifications into a rugged pickup-style body.
Despite its 1/18 scale, the YH18001 PRO is engineered for performance rather than being a simple toy.
The truck measures 277 × 202 × 120mm and weighs approximately 758g, making it easy to transport while remaining stable at higher speeds. Its aggressive pickup truck body is complemented by LED headlights, realistic wheel arches, and a durable PVC shell that gives it an authentic off-road appearance.
The biggest highlight is its 2435 4300KV brushless motor, paired with a 35A integrated brushless ESC and receiver.

This setup enables the truck to reach speeds of up to 70km/h under ideal conditions, providing rapid acceleration and smooth throttle response. Compared to brushed RC vehicles, the brushless system delivers:
The truck supports proportional throttle and steering control, allowing drivers to precisely manage speed instead of operating at only full throttle or full brake.
The YH18001 PRO uses a shaft-driven four-wheel-drive system designed to maintain traction across challenging surfaces.
It performs well on:
The drivetrain also includes numerous upgraded metal components such as:
These upgrades improve durability during aggressive driving and repeated jumps.
Handling is enhanced by a double wishbone independent suspension system with front and rear spring shock absorbers.

This setup helps the truck absorb bumps while maintaining tire contact over uneven terrain, improving both stability and cornering performance.
Large off-road tires with deep tread patterns provide strong grip on loose surfaces, making the truck suitable for recreational bashing as well as casual racing.
The YH18001 PRO arrives in RTR (Ready-to-Run) configuration.
Inside the box you’ll find:
Only three AA batteries for the transmitter need to be purchased separately.
Power comes from a 7.4V 1600mAh 20C Li-ion battery.
Expected performance includes:
While runtime is typical for a high-speed brushless RC vehicle, enthusiasts planning extended sessions may wish to purchase an additional battery pack.
The included 4-channel 2.4GHz transmitter provides:
The 2.4GHz system also minimizes interference when multiple RC vehicles are operated nearby.


YH Toys YH18001 PRO delivers an impressive balance of speed, durability, and value in the increasingly competitive 1/18-scale RC market. Its 70km/h brushless powertrain, metal drivetrain upgrades, independent suspension, and full-time 4WD make it a capable off-road performer that is equally enjoyable for beginners looking to step into the hobby and experienced drivers wanting a compact high-speed basher.
For RC enthusiasts seeking a portable monster truck with genuine hobby-grade performance, the YH18001 PRO stands out as an exciting option that offers far more capability than its compact dimensions might suggest.
The post YH Toys YH18001 PRO Review: A 70km/h 1/18 Brushless RC Monster Truck Built for Speed and Off-Road Fun appeared first on IGeeKphone China Phone, Tablet PC, VR, RC Drone News, Reviews.

An innovative new drone dubbed the “Phantom Twist” can seemingly disappear from view, in a major new robotics advancement offering a close-to-invisible aerial platform.
Its name describes the drone’s rapid spinning motion, which rotates 25 times per second—too fast for the human eye to resolve—thereby acting as a sort of cloak shielding it from visible detection.
The Northwestern University engineering team behind the Phantom Twist revealed their drone during a recent talk at the Sydney, Australia, Robotics: Science and Systems 2026 conference on July 16.
“Most efforts to hide drones focus on making them look like their surroundings,” said Northwestern’s Michael Rubenstein, who led the work. “Instead, we asked whether we could design the drone itself around the way humans perceive motion. This idea of low visibility through persistent motion is something few people have explored.”

Hiding drones is not a new idea. Other engineers have attempted a variety of techniques, including camouflage, transparent materials, and light-bending to obscure the presence of drones and robots. However, all of those focused on the material the drone’s exterior was constructed from, allowing it to blend into the background. The Northwestern team’s innovation was in how the object moves.
To our eyes, fan blades disappear because they are moving so fast that our eyes cannot track them. The “motion blur” created at these speeds allows the Phantom Twist to almost disappear, leaving only a faint apparition perceptible to the eye.
While several military applications are immediately obvious, the team instead says their work could be useful in developing noninvasive wildlife and environmental monitoring. Loud drones can scare wildlife, disrupting them as they scatter, but by blending in, the Phantom Twist could capture a much more accurate picture of natural behaviors.
Their perception-based design eschews the traditional quadcopter design for a single propeller, with a body that spins in the opposite direction, creating the optical illusion that the drone essentially disappears.

“For a typical quadrotor drone, the propellers are spinning, but the robot is stationary,” Rubenstein said. “So, you still see its body. For our drone, the whole thing is rotating, so there are no stationary parts.”
Using AI and optimization algorithms, the Northwestern team began by generating 20,000 different arrangements of a drone’s propeller, motor, circuit board, and other necessary components. Eventually, the algorithm landed on the most promising configurations, after which the researchers simulated and superimposed them onto real-world backgrounds.
Another computer model mimicked human perception, allowing the engineers to assign a perception score for how visible each design would be to human eyes. An algorithm then optimized those designs by moving components to minimize the visibility score even further.
“The design process was fully automated,” Rubenstein said. “Then, when we were confident that a drone met all our criteria, we built it.”
The key feature of this design is that the individual components are at such varying heights and angles that they do not overlap as it spins, maximizing the motion-blur effect and creating the appearance of a faint cloud rather than a solid object.
“The human eye takes time to accumulate signals, roughly analogous to the exposure time of a camera,” said Alexander, an expert in computer vision. “When an object spins quickly, we perceive it as blurring out and losing distinct features. Because this new drone is almost entirely transparent, its few opaque components are visually averaged with the background for an overall appearance of a slight haze.”
Currently impeding the drone from being even more imperceptible to the eye are the wires and support rods that remain visible, as well as the engine noise it produces, which is readily discernible. Going forward, the team plans to continue improving Phantom Twist in future iterations to incorporate more transparent materials and reduce the noise it produces.
Ryan Whalen covers science and technology for The Debrief. He holds an MA in History and a Master of Library and Information Science with a certificate in Data Science. He can be contacted at ryan@thedebrief.org, and follow him on Twitter @mdntwvlf.



Falling overboard from a ship is one of the most dangerous emergencies at sea. Every minute matters, and the chances of survival can quickly decrease as people become exhausted, suffer from cold water exposure, or drift far away from the vessel. Researchers at the Technical University of Denmark (DTU) are developing a new autonomous rescue […]
The post Smart rescue drone could save people who fall overboard at sea appeared first on Knowridge Science Report.


President Donald Trump’s latest pitch for using taxpayer dollars to secure his White House ballroom featured a militarized building—including a rooftop hardened against drone strikes and a “drone port” that could potentially house military drones.
The remarks came on May 19 as Trump gave reporters a personal tour of the ballroom project that has already involved the demolition of the White House mansion’s East Wing. The president spoke of installing a rooftop drone base “for unlimited numbers of drones” operated by the US military as a “drone port that would protect all of Washington,” according to Reuters. He also highlighted a ballroom roof made from “impenetrable steel” that would supposedly be “drone-proof” against potential drone strikes.
To pay for such measures, Trump has been urging Republican lawmakers in the US Congress to approve $1 billion in taxpayer funding to provide a wide variety of “security adjustments and upgrades” for his ballroom project. The taxpayer-backed security enhancements would be separate from the $400 million construction cost for the ballroom project that has been funded by private donors, including companies such as Amazon, Apple, Coinbase, Comcast, Google, HP Inc., Lockheed Martin, Meta, Micron Technology, Microsoft, Palantir, Ripple, and T-Mobile.


© Chip Somodevilla/Getty Images