Tech
China Unveils Mosquito-Sized Spy Drone for Battlefield Reconnaissance
A Chinese military research institution has unveiled a mosquito-sized microdrone designed for battlefield reconnaissance, highlighting the growing use of insect-inspired technologies in modern warfare.
The tiny spy device, resembling a mosquito in both form and size, was presented on China’s state-run military broadcaster CCTV-7 on June 20. It was developed by students at the National University of Defence Technology (NUDT), a leading military research institution in China.
“Here in my hand is a mosquito-like type of robot,” said Liang Hexiang, a NUDT student, while demonstrating the device on camera. “Miniature bionic robots like this one are especially suited to information reconnaissance and special missions on the battlefield.”
Roughly 2 cm in length and weighing only 0.3 grams, the device mimics the appearance and movement of a real insect, equipped with two rapidly flapping wings and three spindly legs. According to Korean media outlet Chosun Ilbo, the wings can flap up to 500 times per second, enabling the device to maneuver with agility.
Another prototype, reportedly featuring four wings and controllable via smartphone, was also introduced, according to the South China Morning Post.
Although the Chinese military has not publicly disclosed the specific surveillance capabilities of the device, military experts suggest that its extremely small size and silent flight could make it ideal for covert operations. Its radar cross-section is believed to be too small to be detected by standard radar systems, making it nearly invisible during missions.
The reveal comes amid a global trend in developing miniature unmanned aerial vehicles (UAVs) for tactical operations. Similar systems have already been fielded by other militaries, including the U.S., which uses the palm-sized Black Hornet drone—a helicopter-style UAV equipped with cameras and thermal imaging—across multiple branches of its armed forces.
The concept of insect-inspired surveillance technology is not new. In 2006, the U.S. Defense Advanced Research Projects Agency (DARPA) launched the HI-MEMS program, aiming to develop insect cyborgs by integrating micro-mechanical systems into live insects for surveillance purposes.
China’s latest development appears to be a continuation of this push toward ultra-small, biologically inspired reconnaissance tools. While the exact timeline for deployment is unclear, the introduction of such microdrones signals a strategic shift toward more sophisticated and stealthy intelligence-gathering capabilities on the battlefield.
Tech
Experts Question Impact of Australia’s New Social Media Ban for Children Under 16
Australia has introduced sweeping restrictions that prevent children under 16 from creating or maintaining accounts on major social media platforms, but experts warn the measures may not significantly change young people’s online behaviour. The restrictions, which took effect on December 10, apply to platforms including Facebook, Instagram, TikTok, Snapchat, YouTube, Twitch, Reddit and X.
Under the new rules, children cannot open accounts, yet they can still access most platforms without logging in—raising questions about how effective the regulations will be in shaping online habits. The eSafety Commissioner says the reforms are intended to shield children from online pressures, addictive design features and content that may harm their health and wellbeing.
Social media companies are required to block underage users through age-assurance tools that rely on facial-age estimation, ID uploads or parental consent. Ahead of the rollout, authorities tested 60 verification systems across 28,500 facial recognition assessments. The results showed that while many tools could distinguish children from adults, accuracy declined among users aged 16 and 17, girls and non-Caucasian users, where estimates could be off by two years or more. Experts say the limitations mean many teenagers may still find ways around the rules.
“How do they know who is 14 or 15 when the kids have all signed up as being 75?” asked Sonia Livingstone, a social psychology professor at the London School of Economics. She warned that misclassifications will be common as platforms attempt to enforce the regulations.
Meta acknowledged the challenge, saying complete accuracy is unlikely without requiring every user to present government ID—something the company argues would raise privacy and security concerns. Users over 16 who lose access by mistake are allowed to appeal.
Several platforms have criticised the ban, arguing that it removes teenagers from safer, controlled environments. Meta and Google representatives told Australian lawmakers that logged-in teenage accounts already come with protections that limit contact from unknown users, filter sensitive subjects and disable personalised advertising. Experts say these protections are not always effective, citing studies where new YouTube and TikTok accounts quickly received misogynistic or self-harm-related content.
Analysts expect many teenagers to shift to smaller or lesser-regulated platforms. Apps such as Lemon8, Coverstar and Tango have surged into Australia’s top downloads since the start of December. Messaging apps like WhatsApp, Telegram and Signal—exempt from the ban—have also seen a spike in downloads. Livingstone said teenagers will simply “find alternative spaces,” noting that previous bans in other countries pushed young users to new platforms within days.
Researchers caution that gaming platforms such as Discord and Roblox, also outside the scope of the ban, may become new gathering points for young Australians. Studies will be conducted to assess the long-term impact on mental health and whether the restrictions support or complicate parents’ efforts to regulate screen time.
Experts say it may take several years to determine whether the ban delivers meaningful improvements to children’s wellbeing.
Tech
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