Track Room Occupancy Without Cameras Using ESP32 Wi-Fi Drops

Learn how to repurpose your spare ESP32 boards into cost-effective presence detection sensors using the Tommy Sense ...
Interesting Engineering

Norwegian firm unveils world’s first certified 3D ultrasonic sensor for safer robots

Sonair unveils ADAR One, a certified 3D ultrasonic sensor that boosts robot safety with all-around human detection.
Hackaday

Time Never Moves Slowly With This Clock

A clock is by its very nature a device for measuring time, and thus it moves forward at a constant rate. But how about in a ...

Meet Mahi Malhani: Class 12 Delhi Student builds TRASHbot, an AI waste-sorting robot with 90% accuracy that’s already being used in societies

A Delhi schoolgirl, Mahi Malhani, developed TRASHbot, an AI-powered robot to tackle litter. Inspired by a visit to Sundar ...
The Next Web

A Czech AI startup says it can detect drones by sound for €150 per sensor, and it wants to wire up power grids first

Czech startup Neuron Soundware built Sound Shield, an AI acoustic drone detection system using €100-150 sensors that consume 1W each. Czech startup Neuron Soundware has built an AI-powered acoustic ...
Food & Wine

Could Ultrasonic Espresso Be Coffee’s Biggest Breakthrough in Years?

Stacey Leasca is an award-winning journalist with nearly two decades of newsroom experience. She is also the co-founder of Be a Travel Writer, an online course for the next generation of travel ...
The Conversation

I used sound waves to make espresso. It could cut coffee‑brewing energy use by 75%

Most of us think of espresso as a hot, high-pressure ritual. Finely ground coffee goes into a machine, boiling water is forced through it, and in about 30 seconds we get a concentrated shot with crema ...
Hosted on MSN

The Soviet plane designed to use sonic booms as a weapon

The M-25 Hell Reaper was a top-secret Soviet concept for a low-flying supersonic aircraft designed to weaponize its own shockwave against troops, buildings, and vehicles on the ground. To do that, ...
New York Post

Firefighters show off amazing new way to extinguish flames — by blasting them with sound, not water

The sound you can’t hear might just save your house. It sounds like something out of a sci-fi blockbuster, but firefighters in California are firing up a fascinating new way to fight flames — with ...
Popular Mechanics

Scientists Are Using Sound Waves to Bend Materials to Their Will

In physics, a mechanical kink marks the point of transition between different internal states of a material. Researchers have now succeeded in creating a model in which they were able to move the kink ...
ABC7 San Francisco

San Bernardino Co. tests fighting fires with oxygen vibrations, sound waves instead of water

SAN BERNARDINO, Calif. (KGO) -- The San Bernardino County Fire Department is testing a new firefighting system that uses sound waves instead of water to extinguish flames. It may sound like something ...
KTLA

Southern California fire department using sound waves to fight fires as alternative to water

Water has long been the go-to when it comes to fighting a fire. But what about sound waves? It might be hard to wrap your head around the concept at first, but the San Bernardino County Fire ...