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João Alves

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3D-Printed Electric Slide Switch (Using Only a Paperclip)

“I’ve dabbled in wiring together my own little electrical projects over the years, mostly in the form of paperclips, aluminum foil, and cardboard cobbled together with hot glue. I recently bought a 3D printer (the Creality Ender 3) and …

8GB Raspberry Pi 4 on sale now at $75

“Raspberry Pi 4 is almost a year old, and it’s been a busy year. We’ve sold nearly 3 million units, shipped a couple of minor board revisions, and reduced the price of the 2GB variant from $45 to …

A new library of atomically thin 2D materials

“NUS researchers have created a whole new library of atomically thin, two-dimensional (2D) materials using a novel and powerful approach of engineering the composition of transition metal dichalcogenides. Materials that are atomically thin offer a platform to explore a wide …

Analog 4-bit random number generator

“As previously reported, I’m on a slow track research project into randomness. Having explored the concept of random bits and built some experimental random electronics, I’m still progressing in my question to understand how randomness can be exploited …

Astronomers Discover New Class of Cosmic Explosions

“Astronomers have found two objects that, added to a strange object discovered in 2018, constitute a new class of cosmic explosions. The new type of explosion shares some characteristics with supernova explosions of massive stars and with the explosions that …

BBQ Thermostat

“A board-controlled temp probe and fan to maintain temperature during a long smoke or BBQ I’d like to make my own version of something like the CyberQ (https://www.bbqguru.com/storenav?CategoryId=1&ProductId=35). There are many …

BPW34 Gamma Ray Detector

“The usual approach to radiation detection is the use of a Geiger-Müller tube and its high voltage circuit requirements, but during a quick surf through the internet today, I came across this portable and “accurate looking” solution developed by Stefan …

Cirrus Logic Launches Advanced Haptic and Sensing Technology Solutions for Richer, Immersive User Experiences

“New Haptic ICs Enable Increased Functionality and Sleek Buttonless Designs for Variety of Smartphones, PCs, Wearables, Gaming, Virtual Reality and Automotive Applications With the goal of elevating the user experience for a wide range of consumer devices, Cirrus Logic (Nasdaq …

Controlling Superconductors with Light

“New theoretical study shows how to use Terahertz light to peep in the secrets of two-dimensional superconductors A researcher at the Center for Theoretical Physics of Complex Systems, within the Institute for Basic Science (IBS, South Korea), Professor Ivan Savenko …

Cosmic bursts unveil Universe’s missing matter

“Astronomers have used mysterious fast radio bursts to solve a decades-old mystery of ‘missing matter’, long predicted to exist in the Universe but never detected—until now. The researchers have now found all of the missing ‘normal’ matter in the …