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Bats can produce ultrasonic pulses with high frequencies between 20,000 and 120,000 hertz, which are inaudible to humans. The sound waves they produce travel forward, hitting nearby objects and bouncing back in the form of echoes.
We haven't written up this one. Phys.org has the full story — the link below goes straight to it.
The prince says 2026 was the first summer he felt "worried about the scale of the wildfires".
An herbal supplement made from kudzu, a plant long used in traditional medicine from East Asia, may offer a new way to help people cut back on binge drinking, according to a UC San Francisco study.
NASA is exploring a daring plan to save the legendary Hubble Space Telescope from its eventual fiery plunge into Earth's atmosphere.
As winter approaches and daylight hours grow shorter, people prone to seasonal depression can feel it in their bodies and brains.
New FCC certification documents offer a closer look at what's coming.
Article URL: https://spectrum.ieee.org/ai-in-cybersecurity-php2shell-vulnerability Comments URL: https://news.ycombinator.com/item?id=50364336 Points: 352 # Comments: 240
