The hackers hunting for the lost Bitcoin billions It's estimated that 3.7 million Bitcoin have been lost - but hackers are helping owners get some of them back.
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How Can 335 Horses Weigh 63 Pounds?
Koenigsegg, the Swedish car company, has a history of unusual engineering. The latest innovation is an electric motor developed for its Gemera hybrid vehicle. The relatively tiny motor weighs 63 pounds and develops 335 horsepower and 443 …
3-Wheeled Electric Skateboard Does Things Differently
Typically, electric skateboards drive one or more wheels with brushless motors, while keeping everything mounted on otherwise fairly-standard trucks to maintain maneuverability. However, [swedishFeetballs] decided to go …
Build Your Own CRT TV
There was a time following the Second World War when TV sets for the nascent broadcast medium were still very expensive, but there was an ample supply of war-surplus electronic parts including ex-radar CRTs. Thus it wasn’t uncommon at all for electroni…
It’s Always Floppy Time!
On [Jan Derogee]’s desk is something that wouldn’t look out of place for many of us, a pile of computer magazines with a case of 3.5″ floppy disks on top of it. The causal observer would see nothing more than the detritus of a retrocomputer enthusia…
Mining and Refining: Lithium, Powering the Future with Brine
Many years ago, I read an article about the new hotness: lithium batteries. The author opened with what he no doubt thought was a clever pop culture reference by saying that the mere mention of lithium would “stri…
Wordle Reverse-Engineering and Automated Solving
Simplified Absurdle decision tree for a single letter guess from a set of three possible options
We don’t know about you, but we have mixed feelings about online puzzle fads. On one hand, they are great tool to help keep one…
A Tuning Fork Clock, With Discreet Logic
[Willem Koopman aka Secretbatcave] was looking at a master clock he has in his collection which was quite a noisy device, but wanted to use the matching solenoid slave clock mechanism he had to hand. Willem is a fan of old-school ‘se…
Record-high seizure of $5bn in stolen Bitcoin Two suspects allegedly conspired to launder the money after it was stolen by a hacker in 2016.
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Peloton boss John Foley to step down as firm axes 2,800 jobs John Foley is being replaced as potential suitors circle amid a downturn for the exercise firm.
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3D Printed Maglev Switches Are So Hot Right Now
It doesn’t happen all the time, but over the years we’ve noticed that once we feature a project, a number of very similar builds often find themselves in our tip line before too long. Of course, these aren’t copycats; not enou…
Palm Portable Keyboard Goes Wireless
Long ago when digital portables where in their infancy, people were already loath to type on tiny keyboards, stylus or not. So Palm made a sweet little portable keyboard that would fold up and fit in your cargo pocket. And what do we hav…
Industrial Sewing Machine: Acquired
Well, it’s done. After weeks of trawling Craigslist, an hour-long phone call with an intelligent stranger about a different machine that wasn’t going suit my needs, and a two-week delay while the seller and I waited out their unintentiona…
SoftBank calls off sale of UK chip firm Arm The sale of Cambridge-based Arm to Nvidia of the US has faced regulatory hurdles around the world.
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Move Aside Solar, We’re Installing An Algae Panel
[Cody] of Cody’sLab has been bit by what he describes as the algae growing bug. We at Hackaday didn’t know that was a disease floating around, but we’ll admit that we’re not surprised after the last few years. So not content…
PlottyBot: A DrawBot That Plots a Lot
Fire up those 3D printers because if you’re like us, you’ll want your own PlottyBot. Still, have a pile of “thank you notes” to write from recent winter holiday gift exchanges? Hoping to hand letter invitations to a wedding or other sig…
Porn sites will be legally required to verify users' age Under new rules, users may be asked to prove they own a credit card or confirm their age via a third-party service.
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Fluke DMM Hack Adds One Digit to Model Number
Among his many interests, [Dave Jones] likes test and measurement equipment. He recently posted a few videos on his EEVblog exploring the reasons why Fluke voltmeters are so expensive. In the process, he stumbled upon an interes…
Arduino Nano Adds USB Interface to the Psion Organiser II
Introduced in 1984, the Psion Organiser series defined the first generation of electronic organizers or PDAs (personal digital assistants). Even though these devices are now over 30 years old, the Psion Organiser sce…
Crimping Tools And The Cost Of Being Cheap
Crimp connectors provide an easy and convenient way to connect electronics while still allowing for them to be removed and swapped without having to reach for a soldering iron and desoldering wick. While browsing one’s favorite che…