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This Week in Security: ToTok, Edgium, Chrome Checks your Passwords, and More
https://hackaday.com/2020/01/03/this-week-in-security-totok-edgium-chrome-checks-your-passwords-and-more/

Merry Christmas and happy New Year! After a week off, we have quite a few stories to cover, starting with an unexpected Christmas gift from Apple. Apple has run an invitation-only bug bounty program for years, but it only covered iOS, and the maximum payout topped out at $200K. The …read more (https://hackaday.com/2020/01/03/this-week-in-security-totok-edgium-chrome-checks-your-passwords-and-more/)
The Fun is On the Christmas Tree with This Playable Duck Hunt Decoration
https://hackaday.com/2020/01/03/the-fun-is-on-the-christmas-tree-with-this-playable-duck-hunt-decoration/

‘Tis the season for leftovers, be they food, regifted presents, or the decorations left behind in the wake of the festivities. Not to mention the late tips we get for holiday-themed builds, like this Duck Hunt ornament that’s completely playable.
Details are sparse in [wermy]’s video below, but there’s enough …read more (https://hackaday.com/2020/01/03/the-fun-is-on-the-christmas-tree-with-this-playable-duck-hunt-decoration/)
Hackaday Podcast 048: Truly Trustworthy Hardware, Glowing Uranium Marbles, Bitstreaming the USB, Chaos of Congress
https://hackaday.com/2020/01/03/hackaday-podcast-048-truly-trustworthy-hardware-glowing-uranium-marbles-bitstreaming-the-usb-chaos-of-congress/

Hackaday editors Elliot WIlliams and Mike Szczys kick off the first podcast of the new year. Elliot just got home from Chaos Communications Congress (36c3) with a ton of great stories, and he showed off his electric cargo carrier build while he was there. We recount some of the most …read more (https://hackaday.com/2020/01/03/hackaday-podcast-048-truly-trustworthy-hardware-glowing-uranium-marbles-bitstreaming-the-usb-chaos-of-congress/)
The Quadratic Equation Solution a Few Thousand Years in the Making
https://hackaday.com/2020/01/03/the-quadratic-equation-solution-a-few-thousand-years-in-the-making/

Everyone learns (and some readers maybe still remember) the quadratic formula. It’s a pillar of algebra and allows you to solve equations like Ax2+Bx+C=0. But just because you’ve used it doesn’t mean you know how to come up with the formula itself. It’s a bear to derive so …read more (https://hackaday.com/2020/01/03/the-quadratic-equation-solution-a-few-thousand-years-in-the-making/)
You Could be a Manufacturing Engineer If You Could Only Find the Time
https://hackaday.com/2020/01/03/you-could-be-a-manufacturing-engineer-if-you-could-only-find-the-time/

Let’s be honest, Ruth Grace Wang can’t teach you how to be a manufacturing engineer in the span of a twenty minute talk. But no-one can. This is about picking up the skills for a new career without following the traditional education path, and that takes some serious time. But …read more (https://hackaday.com/2020/01/03/you-could-be-a-manufacturing-engineer-if-you-could-only-find-the-time/)
Unique 3D Printer Turned CNC Engraver
https://hackaday.com/2020/01/03/unique-3d-printer-turned-cnc-engraver/

As we’ve said in the past, one of the most exciting things about the proliferation of low-cost desktop 3D printers (beyond all the little boats we get to see on Reddit), is the fact that their motion control systems are ripe for repurposing. Outfitting a cheap 3D printer with a …read more (https://hackaday.com/2020/01/03/unique-3d-printer-turned-cnc-engraver/)
Voltmeter Clock Looks Great On Display
https://hackaday.com/2020/01/03/voltmeter-clock-looks-great-on-display/

Voltmeters are cheap, and have a great industrial aesthetic about them. This makes them prime candidates for hackers looking to do a clock build. [Brett Oliver] went down this very road, and built a very stylish timepiece along the way.
[Brett] initially wanted to go with 240-degree voltmeters, however the …read more (https://hackaday.com/2020/01/03/voltmeter-clock-looks-great-on-display/)
Tracking Vaccination History With Invisible Tattoos
https://hackaday.com/2020/01/03/tracking-vaccination-history-with-invisible-tattoos/

Nowadays, we still rely on medical records to tell when our last vaccinations were. For social workers in developing countries, it’s an incredibly difficult task especially if there isn’t a good standard in place for tracking vaccinations already.
A team at the Massachusetts Institute of Technology may be providing a …read more (https://hackaday.com/2020/01/03/tracking-vaccination-history-with-invisible-tattoos/)
Dinural Reef Control Realistically Insolates Your Aquarium
https://hackaday.com/2020/01/03/dinural-reef-control-realistically-insolates-your-aquarium/

[Phillip]’s project is not just great for learning new words, it also shows just how complex natural systems can be. 
As we know from news around the word, reefs are delicate systems prone to damage from just about any imaginable threat. Escaped aquarium fish, sunscreen, and the wayward feet of …read more (https://hackaday.com/2020/01/03/dinural-reef-control-realistically-insolates-your-aquarium/)
Making a Custom Caliper Case for Pros
https://hackaday.com/2020/01/04/making-a-custom-caliper-case-for-pros/

Every professional has a tool set that they would never part with. Likewise, for experimental physicists, mechanical engineers, and tinkerers, a caliper set can be unspeakably crucial to their work. That’s why [Andrew Birkel] designed his own personal caliper set to fit just the right proportions for his tools while …read more (https://hackaday.com/2020/01/04/making-a-custom-caliper-case-for-pros/)
OpenDog: Adding Force Sensitive Feet
https://hackaday.com/2020/01/04/opendog-adding-force-sensitive-feet/

[James Bruton] OpenDog remains one of the most impressive home-built robotics projects we’ve seen here on Hackaday, and it’s a gift that just keeps on giving. This time he’s working on adding force sensing capabilities to OpenDog’s legs to allow for more dynamic movement control.
The actuators in the legs …read more (https://hackaday.com/2020/01/04/opendog-adding-force-sensitive-feet/)
City Clock Is Beautiful Tribute To Parisian Architecture
https://hackaday.com/2020/01/04/city-clock-is-beautiful-tribute-to-parisian-architecture/

Binary clocks are often created as a programming exercise, or to display the time in a project with the minimal practical components. Displaying the time in binary needn’t always be for practicalities sake, however. The City Clock shows that it can be applied quite artfully, too.
The electronic side of …read more (https://hackaday.com/2020/01/04/city-clock-is-beautiful-tribute-to-parisian-architecture/)
Altair 8800 Again Project
https://hackaday.com/2020/01/04/altair-8800-again-project/

[Dirk] posted a video (you can see below) titled, “Mystery Retro Project Start.” That turned out to be the first of a multipart series on his Altair 8800 Again simulator. The front panel appears to be laser cut and in some future video episodes, we expect to see him simulate …read more (https://hackaday.com/2020/01/04/altair-8800-again-project/)
Datacenter UPS Heads Home for Off-Grid Power Solution
https://hackaday.com/2020/01/04/datacenter-ups-heads-home-for-off-grid-power-solution/

The news sites seem never to be without stories of Elon Musk and his latest ventures, be they rapid transit tube tubes in partial vacuum, space flight, or even personal not-a-flamethrowers. Famous for electric vehicles, Musks’s Tesla also has a line of solar products and offers the Powerwall home battery …read more (https://hackaday.com/2020/01/04/datacenter-ups-heads-home-for-off-grid-power-solution/)
Baby’s First Jukebox is Fun for Parents, Too
https://hackaday.com/2020/01/04/babys-first-jukebox-is-fun-for-parents-too/

Believe it or not, there’s a $400 toy mp3 player out there for kids. It looks pretty nice, with colorful buttons and a wood console and all, but those features don’t really justify the price tag. [DerThes] wanted one for his 2-year-old anyway, so he made his own ruggedized version …read more (https://hackaday.com/2020/01/04/babys-first-jukebox-is-fun-for-parents-too/)
3D-Printed Moiré Illusion May Just Drive You Crazy
https://hackaday.com/2020/01/04/3d-printed-moire-illusion-may-just-drive-you-crazy/

Moiré illusions can be visually captivating, particularly when a little rotational motion is thrown in the mix. [Dushyant Ahuja] was a fan of these moving Moiré sculptures he’d seen around the place, and decided to create his own.
The build is based around spinning two spoked discs in opposite directions, …read more (https://hackaday.com/2020/01/04/3d-printed-moire-illusion-may-just-drive-you-crazy/)
2D-Platform Seeks Balance with a Touch Screen
https://hackaday.com/2020/01/04/2d-platform-seeks-balance-with-a-touch-screen/

It’s the [Bruce Land]-iest season of all, when the Cornell professor submits the projects his microcontroller class students have been working on all semester. Imagination does not seem to be in short supply with these students, and we always look forward to these tips this time of year.
[Greg] and …read more (https://hackaday.com/2020/01/04/2d-platform-seeks-balance-with-a-touch-screen/)
Arduino Wristwatch Has LED Hands
https://hackaday.com/2020/01/05/arduino-wristwatch-has-led-hands/

When you read “Arduino wristwatch”, you fall into the trap of envisioning an Arduino UNO clumsily strapped to someone’s wrist. [Marijo Blažević’s] creation is much more polished than that. A round circuit board holds two surface mount ICs and 12 LEDs. The whole thing looks nice fit snugly inside of …read more (https://hackaday.com/2020/01/05/arduino-wristwatch-has-led-hands/)
All You’ve Ever Wanted to Know about Compilers
https://hackaday.com/2020/01/05/all-youve-ever-wanted-to-know-about-compilers/

They say that in order to understand recursion, you must first understand recursion. Once you master that concept, you might decide that it’s time to write your own compiler that can compile itself as a fun side project. According to [Warren] aka [DoctorWkt], who documented every step of writing this …read more (https://hackaday.com/2020/01/05/all-youve-ever-wanted-to-know-about-compilers/)
Space-Saving Servo Tester Console Looks Space-Worthy
https://hackaday.com/2020/01/05/space-saving-servo-tester-console-looks-space-worthy/

You know how it goes — sometimes you just have to stop in the middle of a project and build yourself a tool that vastly improves your workflow as soon as it’s completed. [Ikkalebob] aka [Will Cogley] on YouTube is working on some super secret project that requires a whole …read more (https://hackaday.com/2020/01/05/space-saving-servo-tester-console-looks-space-worthy/)