Collaborate Disseminate
At this point, atomic clocks are old news. They’ve been quietly keeping our world on schedule for decades now, and have been through several iterations with each generation gaining more …read more Continue reading 2025 One Hertz Challenge: Atomic Decay Clock is Accurate But Not Precise
Sometimes, there are too many choices in this world. My benchtop function generator can output a sine, square, or saw wave anywhere from 0.01 Hz up to 60 MHz? Way …read more Continue reading 2025 One Hertz Challenge: Op-Amp Madness
Sometimes, we’re faced with what should be simple household tasks that we choose to make more difficult. Sure, you could buy a clock, hang it on your wall, and move …read more Continue reading Hexagonal Lighting Brings a Touch of Elegance to the Workshop
Mankind has been using water to mark the passage of time for thousands of years. From dripping stone pots in Ancient Egypt to the more mechanically-complicated Greco-Roman Clepsydrae, the history …read more Continue reading 2025 One Hertz Challenge: Drop the Beat (But Only at 60 BPM)
One of the categories we chose for the One Hertz Challenge is “Could Have Used a 555.” What about when you couldn’t have, but did anyway? The 555 is famously …read more Continue reading 2025 One Hertz Challenge: 555 Timer Gets a Signal From Above
One of the earliest commercially-successful camera technologies was the rangefinder — a rather mechanically-complex system that allows a photographer to focus by triangulating a subject, often in a dedicated focusing …read more Continue reading Fusing Cheap eBay Find Into a Digital Rangefinder
We’ve all felt the frustration of cheap consumer electronics — especially when they aren’t actually cheap. How many of us have said “Who designed this crap? I could do better …read more Continue reading 2025 One-Hertz Challenge: Pokémon Alarm Clock Tells You It’s Time to Build the Very Best
Gone are the days when all smart devices were required an internet uplink. The WiFi-enabled IoT fad, while still upon us (no, my coffee scale doesn’t need to be on …read more Continue reading Pulling at Threads With the Flipper Zero
As part of his multi-year project to build a quantum computer, hacakday.io poster [skywo1f] has shared with us his most recent accomplishment — a Nuclear Magnetic Resonance Spectrometer, which he …read more Continue reading Quasi-Quantifying Qubits for 100 Quid
Display technology has come a long way since the advent of the CRT in the late 1800s (yes, really!). Since then, we’ve enjoyed the Nixie tubes, flip dots, gas plasma, …read more Continue reading Playing Snake with Digital Microfluidics