Blog

Venezuelan Residents Received an Alert When the Earthquakes Struck

Catwell

In 2020, Southern California experienced a 4.5-magnitude earthquake. Android phones were notified when the quake hit. (Image Credit: Google) Small earthquakes, which cause little to no damage, happen every day. Occasionally, stronger ones strike. Th...
- 15 Jul 2026
Last Year, Paradromics and the University of Michigan Implanted A BCI In a Research Participant

Catwell

The Connexus BCI recorded neural activity as soon as they fire. (Image Credit: University of Michigan) Elon Musk’s Neuralink has competition in the brain-computer interface (BCI) space. In collaboration with Paradromics, University of Michig...
- 10 Jul 2026
Commercial LiDAR Sensor Can Allow You to See Around Corners

Catwell

MIT researchers have turned a smartphone LiDAR sensor into a system that can see around corners. (Image Credit: Aaron Young/MIT Media Lab) One might think it’s impossible to see around corners without special equipment. But MIT researchers ha...
- 30 Jun 2026
Researchers Develop a Light-Based Chip That Processes Information

Catwell

Artist’s impression of a photonic valleytronic chip that processes information. (Image Credit: Chi Linn) Monash University researchers recently developed a tiny circuit that generates light signals, precisely routes them, and turns them into e...
- 25 Jun 2026
Monitoring Mains Current: Experimenting with the SCT013 Current Clamp

shabaz

Table of Contents Introduction What Is It? Sensitivity Testbed ‘Scope Traces Example ADC Circuit Summary Introduction The SCT013 (sometimes called SCT-013) is popular in a lot of home automation projects, for monitoring the current consu...
- 17 Jun 2026
Can LEDs Influence Human Visual Performance?

Catwell

(Image Credit: BrianPenny/pixabay) University College London (UCL) researchers looked into whether LED lights limited spectral range negatively affects vision. They compared LED office lighting with broader-spectrum incandescent lighting, with infra...
- 5 Jun 2026
Researchers Develop Tiny Memory That Improves as it Shrinks

Catwell

Rendering of the 25-nanometer wide FTJ developed by Science Tokyo. (Image Credit: Yutaka Majima of the Royal Society of Chemistry) Engineers at Science Tokyo developed a 25-nanometer-wide ferroelectric tunnel junction (FTJ) memory that improves perf...
- 12 May 2026
Maker Develops RAM In Backyard Shed

Catwell

RAM. (Image Credit: PublicDomainPictures/pixabay) I’d love to upgrade to DDR5 ram someday, I was just looking at those prices. I think we all know, RAM prices are crazy high due to the AI demand soaking up the memory supply. And there may not ...
- 29 Apr 2026
Electronics Engineer Builds a PLFM Open-Source Radar System

Catwell

Nawfal built an affordable and accessible radar system that operates at 10.5 GHz. (Image Credit: Nawfal Motii) Morocco-based electronics engineer Nawfal developed an affordable, open-source AERIS-10 radar system that combines SDR hardware with ...
- 22 Apr 2026
ETH Zurich Engineers Develop Small Magnets That Achieve 38 and 42 Tesla

Catwell

Schematic diagram showing the coils for the magnets. (Image Credit: Science Advances (2026). DOI: 10.1126/sciadv.adz5826.) High-field magnets, especially those for Nuclear Magnetic Resonance (NMR) or particle accelerators, are massive, sometimes bui...
- 25 Mar 2026
Device Twists Light, Revealing Its Handedness

Catwell

Harvard researchers developed a device that differentiates the left-or-right handedness of light. (Image Credit: Mazur group at Harvard SEAS) Researchers at Harvard’s John A. Paulson School of Engineering and Applied Sciences (SEAS) recently d...
- 24 Mar 2026
Denmark Installs Red Street Lights, Helping with Biodiversity

Catwell

Denmark installed red LEDs in 2022 to help with biodiversity. (Image Credit: Light Bureau) Engineers design things for interaction, for humans. HMI, GUI, touchscreen, simple buttons and switches. We interpret the world back to us. But, what if we di...
- 18 Mar 2026
Researchers Develop Water-Based Enzyme Inks, Simplifying the EBFC Manufacturing Process

Catwell

Example of a skin patch health monitor. (Image Credit: Bing Image Creator) Wearable biosensors are quickly evolving, with smaller devices like flexible skin patches continuously monitoring physiological signals. These analyze sweat to measure metabo...
- 13 Mar 2026
SWOT Spots Large Waves During Major Storms

Catwell

Storm Eddie produced an ocean wave that reached 19.7 meters tall. (Image Credit: ESA/Planetary Visions) Ocean waves that grow to over twenty meters could threaten maritime safety, offshore infrastructure, and coastal communities. However, measuring ...
- 12 Mar 2026
Transatlantic TAT-8 Fiber-Optic Cable is Being Removed from the Seabed

Catwell

(Image Credit: pixabay) For over twenty years, the Trans-Atlantic Telephone 8 (TAT-8) cable sat on the ocean floor in its out-of-operational-use state. Now, SubSea Environmental Services is pulling it from the seabed close to Portugal. The world&rsq...
- 6 Mar 2026
Researchers Create the World’s Smallest QR Code

Catwell

The smallest QR code is 1.98 square micrometers and can only be seen under an electron microscope. (Image Credit: TU Wien) TU Wien recently collaborated with Cerabyte, a data storage company, to create the smallest QR code measuring just 1.98 square...
- 25 Feb 2026
NASA Made Its Sea Level Changes Data Publicly Available

Catwell

NASA’s reference grid of sea surface height anomalies. (Image Credit: NASA) For over three decades, NASA has been using Sea Surface Height (SSH) products derived from satellite altimetry (TOPEX/Poseidon, Jason series, and Sentintel-6) to track...
- 18 Feb 2026
Researchers Captured a Visualization of a Hydrogen Atom’s Electron Orbital

Catwell

These images demonstrate on-resonance tunneling ionization through the Coulomb potential, with non-resonant ionization shown in A) and C). Meanwhile, B) shows resonant ionization producing a two-node wave function pattern. (Image Credit: Stodolna et...
- 30 Jan 2026
How many gas sensors can be connected to an ESP32 microcontroller?

siddhatej

I am working on an Electronic Nose / gas sensing project using ESP32. I want to know how many gas sensors can be connected to ESP32 and what are the limitations.
- 21 Jan 2026
Clouds of Microplastics Discovered in China

Catwell

This diagram shows ring slices with polymer composition (C-rich, C+0-rich, C+others fractions) for atmospheric microplastics (outer) and nanoplastics (inner) groups, plastic fluxes from single events, TSP from 5-day composites (d, day). (Image...
- 20 Jan 2026
LEGO Introduces New Smart Brick at CES 2026

Catwell

LEGO unveiled the Smart Brick, set to launch later this year. (Image Credit: LEGO) The most important announcement at CES 2026 in Las Vegas, LEGO unveiled a more interactive way to play---the Smart Brick, the main piece of its upcoming Smart Play sy...
- 16 Jan 2026
Connector Design for Harsh Environments: Miniaturization, IP Ratings, and Signal Integrity

Catwell

(Image credit: Pixabay) Engineers working in industrial, automotive, marine, or outdoor systems know that connectors aren't just passive hardware; they can be a critical point of failure when environments become extreme. Dust, moisture, vibratio...
- 14 Jan 2026
Researchers Develop Tactile Screen That Can Be Seen and Felt

Catwell

Researchers developed a screen patterned with tiny pixels that expand outward, forming bumps when illuminated, allowing users to see and feel the animations. (Image Credit: UC Santa Barbara) Researchers at the University of California, Santa Barbara...
- 9 Jan 2026
Modern Measurement: How Oscilloscopes and Analyzers Are Adapting to Today’s Designs

Catwell

(Image credit: Unsplash) Electronic designs have become increasingly complex over the decades. A single device can combine high-speed digital interfaces, mixed-signal control loops, RF connectivity, and power electronics, all packed into a tight for...
- 9 Jan 2026
Close-Up - Massive Tsunami Captured for the First Time Ever

Catwell

Image showing the tsunami recorded by the DART buoys and SWOT satellite. (Image Credit: The Seismic Record) On July 29, 2025, a magnitude 8.8 earthquake struck the Kuril-Kamchatka region, triggering a huge tsunami that rolled across the Pacific. Luc...
- 3 Dec 2025