Collaborate Disseminate
The more people we have on this planet, the more food we need. Naturally, this extends to water, another precious resource that generally plays a part in farming and food …read more Continue reading Hackaday Prize 2022: Ultratower Is a Powerful Gardening Vertical
Clothes dryers are great, and a key part of modern life, but they do use a lot of energy. [Mike Rigsby] decided to see if there was a more efficient …read more Continue reading Hackaday Prize 2022: Drying Clothes With Ultrasound
Canadian researchers at Concordia University want to change how you do 3D printing. Instead of using light or thermal mechanisms, they propose using ultrasound-activated sonochemical reactions. Sounds wild? You can …read more Continue reading 3D Printing with Sound, Directly
If there’s one thing audiences love in sci-fi, it’s a cute robot companion that follows the heroes around. If you want one of your own, starting with this build from …read more Continue reading 2022 Sci-Fi Contest: A Hand-Following Robot, Powered by Arduino
Ultrasonic transducers are incredible, with them you can detect distances, as well as levitate and peer through objects. They can emit and receive ultrasonic soundwaves (typically above 18khz) and just …read more Continue reading Bend It Like (Sonar) Beacon With A Phased Array
Have you ever heard of topological insulators? These are exotic materials where electricity flows only on the surface with very little loss. Now, according to IEEE Spectrum, scientists at Harvard …read more Continue reading Acoustic Switching Transistors: A new Kind of Electronics?
The spooky season is upon us, and with it the race to come up with the geekiest way to scare the kids. Motion-activated jump-scare setups are always a crowd-pleaser, but …read more Continue reading Ultrasonic Array Powers This Halloween Spirit Writer
Levitating things with magnets is no great feat these days. We don’t see as many projects with sonic levitation. However, Japanese engineers have a new method to lift objects using …read more Continue reading Levitation by Sound
This swanky Magnavox remote is old enough to predate the use of infrared, and actually relies on ultrasound to communicate with the television. It’s a neat conversation starter, but not …read more Continue reading Vintage Remote Control Gets Bluetooth Upgrade
Who wouldn’t want an autonomous drone to deliver cans of fizzy drink fresh from the fridge? [Alex Toussaint] did, and in thinking how such a machine might work he embarked …read more Continue reading A Phased-Array Ultrasonic 3D Scanner From Scratch