2025 One Hertz Challenge: Timekeeping at One Becquerel <img width="800" height="450" src=" alt=""/>The Becquerel (Bq) is an SI unit of radioactivity: one becquerel is equivalent to one radioactive decay per second. That absolutely does not make it equivalent to one hertz —

Hackaday

2025 One Hertz Challenge: Timekeeping At One Becquerel

The Becquerel (Bq) is an SI unit of radioactivity: one becquerel is equivalent to one radioactive decay per second. That absolutely does not make i...

Hackaday

2025 One Hertz Challenge: Timekeeping At One Becquerel

The Becquerel (Bq) is an SI unit of radioactivity: one becquerel is equivalent to one radioactive decay per second. That absolutely does not make i...

How Laser Headlights Died In The US <img width="800" height="484" src=" alt=""/>Automotive headlights started out burning acetylene, before regular electric lightbulbs made them obsolete. In due time, halogen bulbs took over, before the industry began to explore even newer technologies like

Hackaday

How Laser Headlights Died In The US

Automotive headlights started out burning acetylene, before regular electric lightbulbs made them obsolete. In due time, halogen bulbs took over, b...

Hackaday

How Laser Headlights Died In The US

Automotive headlights started out burning acetylene, before regular electric lightbulbs made them obsolete. In due time, halogen bulbs took over, b...

Should You Try Printing with Polypropylene? <img width="800" height="450" src=" alt=""/>Of all the plastics that surround us on the daily, the one we hear least about in the 3D printing world is probably polypropylene (PP). Given that this tough, slightly

Hackaday

Should You Try Printing With Polypropylene?

Of all the plastics that surround us on the daily, the one we hear least about in the 3D printing world is probably polypropylene (PP). Given that ...

Hackaday

Should You Try Printing With Polypropylene?

Of all the plastics that surround us on the daily, the one we hear least about in the 3D printing world is probably polypropylene (PP). Given that ...

The Terminal Demise of Consumer Electronics Through Subscription Services <img width="800" height="484" src=" alt=""/>Open any consumer electronics catalog from around the 1980s to the early 2000s and you are overwhelmed by a smörgåsbord of devices, covering any audio-visual and similar entertainment and hobby

Hackaday

The Terminal Demise Of Consumer Electronics Through Subscription Services

Open any consumer electronics catalog from around the 1980s to the early 2000s and you are overwhelmed by a smörgåsbord of devices, covering any ...

Hackaday

The Terminal Demise Of Consumer Electronics Through Subscription Services

Open any consumer electronics catalog from around the 1980s to the early 2000s and you are overwhelmed by a smörgåsbord of devices, covering any ...

China’s Great Solar Wall is a Big Deal <img width="800" height="533" src=" alt="An overhead image of the Kubuqi Desert Great Solar Wall. It shows a series of clusters of bluish solar panels arranged throughout a light brown and dark brown desert. One of the arrays contains an image of a horse made of solar panels."/>Data centers and the electrification of devices that previously ran on fossil fuels is driving increased demand for electricity around the world. China is addressing this with a megaproject that

Hackaday

China’s Great Solar Wall Is A Big Deal

Data centers and the electrification of devices that previously ran on fossil fuels is driving increased demand for electricity around the world. C...

Hackaday

China’s Great Solar Wall Is A Big Deal

Data centers and the electrification of devices that previously ran on fossil fuels is driving increased demand for electricity around the world. C...

Cracking Abandonware DRM Like It’s 1999 <img width="800" height="450" src=" alt=""/>As long as there have been games, there have been crackers breaking their copy protections. “Digital Rights Management” or DRM, is a phrase for copy protection coined near the end

Hackaday

Cracking Abandonware DRM Like It&#8217;s 1999

As long as there have been games, there have been crackers breaking their copy protections. &#8220;Digital Rights Management&#8221; or DRM, is a ph...

Hackaday

Cracking Abandonware DRM Like It&#8217;s 1999

As long as there have been games, there have been crackers breaking their copy protections. &#8220;Digital Rights Management&#8221; or DRM, is a ph...

Practical Guide to Pedal-Powered Electrical Generators <img width="800" height="450" src=" alt=""/>An adult human can produce about 100 Wh of mechanical power whilst cycling, which is a not inconsiderable amount if you can convert that to electricity with reasonable efficiency. In

Hackaday

Practical Guide To Pedal-Powered Electrical Generators

An adult human can produce about 100 Wh of mechanical power whilst cycling, which is a not inconsiderable amount if you can convert that to electri...

Hackaday

Practical Guide To Pedal-Powered Electrical Generators

An adult human can produce about 100 Wh of mechanical power whilst cycling, which is a not inconsiderable amount if you can convert that to electri...

2025 One Hertz Challenge: A Flaming Oscillator and a New Take on the Candle Clock <img width="800" height="450" src=" alt="On the left side of the image, three lit candles are positioned next to each other, so that the flames merge. On the right side, an oscilloscope screen is shown displaying an oscillating waveform."/>Candle clocks were once an easy way to build a clock without using complex mechanical devices: just observe how quickly a thin candle burns down, mark an identical candle with

Hackaday

2025 One Hertz Challenge: A Flaming Oscillator And A New Take On The Candle Clock

Candle clocks were once an easy way to build a clock without using complex mechanical devices: just observe how quickly a thin candle burns down, m...

Hackaday

2025 One Hertz Challenge: A Flaming Oscillator And A New Take On The Candle Clock

Candle clocks were once an easy way to build a clock without using complex mechanical devices: just observe how quickly a thin candle burns down, m...

Recto: In Case Programming isn’t Hard Enough <img width="800" height="470" src=" alt=""/>There’s long been a push to stop writing code as a sequence of lines and go to something graphical, which has been very successful in some areas and less so

Hackaday

Recto: In Case Programming Isn&#8217;t Hard Enough

There&#8217;s long been a push to stop writing code as a sequence of lines and go to something graphical, which has been very successful in some ar...

Hackaday

Recto: In Case Programming Isn&#8217;t Hard Enough

There&#8217;s long been a push to stop writing code as a sequence of lines and go to something graphical, which has been very successful in some ar...

Llama Habitat Continues to Expand, Now Includes the PSP <img width="800" height="454" src=" alt="Sony PSP, Evan-Amos, Public Domain."/>Organic Llamas have a rather restricted range, in nature: the Andes Mountains, and that’s it. Humans weren’t content to let the fluffy, friend-shaped creatures stay in their natural habitat, however,

Hackaday

Llama Habitat Continues To Expand, Now Includes The PSP

Organic Llamas have a rather restricted range, in nature: the Andes Mountains, and that&#8217;s it. Humans weren&#8217;t content to let the fluffy,...

Hackaday

Llama Habitat Continues To Expand, Now Includes The PSP

Organic Llamas have a rather restricted range, in nature: the Andes Mountains, and that&#8217;s it. Humans weren&#8217;t content to let the fluffy,...

It’s a Pi, But it’s not Quite a Raspberry Pi <img width="800" height="450" src=" alt=""/>When is a Raspberry Pi not a Raspberry Pi? Perhaps when it’s a Pi Zero-shaped board with an RP3A0 SoC from a Raspberry Pi Zero 2, made by [jonny12375]. Back

Hackaday

It&#8217;s A Pi, But It&#8217;s Not Quite A Raspberry Pi

When is a Raspberry Pi not a Raspberry Pi? Perhaps when it&#8217;s a Pi Pico-shaped board with an RP3A0 SoC from a Raspberry Pi Zero 2, made by [jo...

Hackaday

It&#8217;s A Pi, But It&#8217;s Not Quite A Raspberry Pi

When is a Raspberry Pi not a Raspberry Pi? Perhaps when it&#8217;s a Pi Pico-shaped board with an RP3A0 SoC from a Raspberry Pi Zero 2, made by [jo...

Commodore is Back Selling New C64s, but Should You Buy them? <img width="800" height="275" src=" alt=""/>It’s hard to argue with nostalgia, but you can toss a bucket of cold facts over it. In the case of the recent rescuing of the Commodore brand from the

Hackaday

Commodore Is Back Selling New C64s, But Should You Buy Them?

It&#8217;s hard to argue with nostalgia, but you can toss a bucket of cold facts over it. In the case of the recent rescuing of the Commodore brand...

Hackaday

Commodore Is Back Selling New C64s, But Should You Buy Them?

It&#8217;s hard to argue with nostalgia, but you can toss a bucket of cold facts over it. In the case of the recent rescuing of the Commodore brand...

A Second Chance for the Single Wheel Monorail? <img width="800" height="450" src=" alt="Meccano model of a Brennan's monorail"/>Lately, this peculiar little single wheel monorail came to our attention. Built by [extraglide1976], all from Meccano. His build started with modest tests: one gyro obviously flopped. Two gyros geared

Hackaday

A Second Chance For The Single Wheel Monorail?

Lately, this peculiar little single wheel monorail came to our attention. Built by [extraglide1976], all from Meccano. His build started with modes...

Hackaday

A Second Chance For The Single Wheel Monorail?

Lately, this peculiar little single wheel monorail came to our attention. Built by [extraglide1976], all from Meccano. His build started with modes...

From Smartphone to a Home Server <img width="800" height="450" src=" alt=""/>Some people like their homelabs to be as big and fancy as possible, with racks of new or surplus server hardware sucking down power. [Hardware Haven] evidently has the opposite

Hackaday

From Smartphone To A Home Server

Some people like their homelabs to be as big and fancy as possible, with racks of new or surplus server hardware sucking down power. [Hardware Have...

Hackaday

From Smartphone To A Home Server

Some people like their homelabs to be as big and fancy as possible, with racks of new or surplus server hardware sucking down power. [Hardware Have...

MorPhlex: The TPU Filament That Goes Soft After You Print It <img width="800" height="371" src=" alt=""/>In FDM 3D printing cycles TPU is a bit of a special filament. Not so much because of its properties, but because it’s rather stretchy even as a filament, which

Hackaday

MorPhlex: The TPU Filament That Goes Soft After You Print It

In FDM 3D printing cycles TPU is a bit of a special filament. Not so much because of its properties, but because it&#8217;s rather stretchy even as...

Hackaday

MorPhlex: The TPU Filament That Goes Soft After You Print It

In FDM 3D printing cycles TPU is a bit of a special filament. Not so much because of its properties, but because it&#8217;s rather stretchy even as...

2025 One Hertz Challenge: STM32 Blinks In Under 50 Bytes <img width="743" height="417" src=" alt=""/>Many of us have run a Blink program on a microcontroller before. It’s effectively the “Hello, World!” of the embedded space. However, few of us have ever thought about optimizing

Hackaday

2025 One Hertz Challenge: STM32 Blinks In Under 50 Bytes

Many of us have run a Blink program on a microcontroller before. It&#8217;s effectively the &#8220;Hello, World!&#8221; of the embedded space. Howe...

Hackaday

2025 One Hertz Challenge: STM32 Blinks In Under 50 Bytes

Many of us have run a Blink program on a microcontroller before. It&#8217;s effectively the &#8220;Hello, World!&#8221; of the embedded space. Howe...

The Nibbler was Quite a Scamp <img width="800" height="588" src=" alt=""/>The late 1970s were an interesting time for microcomputers. The rousing success of things like the 8080, the Z80, the 6800, and the 6502 made everyone wanted a piece of

Hackaday

The Nibbler Was Quite A Scamp

The late 1970s were an interesting time for microcomputers. The rousing success of things like the 8080, the Z80, the 6800, and the 6502 made every...

Hackaday

The Nibbler Was Quite A Scamp

The late 1970s were an interesting time for microcomputers. The rousing success of things like the 8080, the Z80, the 6800, and the 6502 made every...

Metric, Imperial, and Flexibility <img width="800" height="484" src=" alt=""/>Al Williams wrote up a seemingly innocent piece on a couple of rules-of-thumb to go between metric and US traditional units, and the comment section went wild! Nothing seems to

Hackaday

Metric, Imperial, And Flexibility

Al Williams wrote up a seemingly innocent piece on a couple of rules-of-thumb to go between metric and US traditional units, and the comment sectio...

Hackaday

Metric, Imperial, And Flexibility

Al Williams wrote up a seemingly innocent piece on a couple of rules-of-thumb to go between metric and US traditional units, and the comment sectio...

How to Convert a Drain into a Hydropower Facility <img width="800" height="343" src=" alt="Three stages of the dam construction"/>Over on his YouTube channel [Construction General] shows us how to convert a drain into a hydropower facility. This type of hydroelectric facility is known as a gravitation water vortex

Hackaday

How To Convert A Drain Into A Hydropower Facility

Over on his YouTube channel [Construction General] shows us how to convert a drain into a hydropower facility. This type of hydroelectric facility ...

Hackaday

How To Convert A Drain Into A Hydropower Facility

Over on his YouTube channel [Construction General] shows us how to convert a drain into a hydropower facility. This type of hydroelectric facility ...

Josef Prusa Warns Open Hardware 3D Printing is Dead <img width="800" height="450" src=" alt=""/>It’s hard to overstate the impact desktop 3D printing has had on the making and hacking scene. It drastically lowered the barrier for many to create their own projects, and

Hackaday

Josef Prusa Warns Open Hardware 3D Printing Is Dead

It&#8217;s hard to overstate the impact desktop 3D printing has had on the making and hacking scene. It drastically lowered the barrier for many to...

Hackaday

Josef Prusa Warns Open Hardware 3D Printing Is Dead

It&#8217;s hard to overstate the impact desktop 3D printing has had on the making and hacking scene. It drastically lowered the barrier for many to...