This Light-Up Bottle Does More Than Just Hold Water

By Chris Mills

If you’ve ever wanted to try being invisible, cycling on a busy road at night is a good start. Adding front and rear lights is obviously a good move, but for side-on visibility, things get a little more tricky. Italian cycling company Elite is trying to solve that with something surprisingly simple: a light-up water bottle.

Via: Gizmodo

    

Nuclear Reactor Eye Candy From Around the World

By George Graves

Everyone loves a field trip. It’s always fun to visit a manufacturing plant to see how the big-boys make all the cool toys we love. But there are a few places you might not want to go exploring, like inside a nuclear reactor.

Well fear not, now you can spend as much time as you would like with these amazing cut-away of nuclear facilities from across the globe. You can thank University of New Mexico Libraries Exhibition for hosing these photos that have been published in “Nuclear Engineering International” magazine over the years. If you happen to have a pdf allergy, you can also browse most of them on flickr here.

And if you want to see more amazing cutaways, there is this photo pool full of some

Via: Hack a Day

    

Seven Segment Clock Made From Scratch

By Will Sweatman

clock

[David Hopkins] built a seven segment clock, but not in a way you would think. Typically, if one wants to make something like this, one would start off with some seven segment LEDs. [David] wanted to kick it up a notch and use RGB LEDs to get access to the wide array of different colors, but found off the shelf assemblies cost prohibitive. So, he did what any good hacker would do. He made his own.

The easy part consists of Neopixels, an Arduino Nano and a DS3231 Real Time Clock. The hard part consists of Plasticard and a polymorph diffuser. Plasticard also goes by the name of Polystyrene and comes in sheets. [David] describes Polymorph as a type of moldable nylon that softens with heat, with a working temperature low enough that boiling water will suffice.

He was able to cut out the individual segments to make an impressive looking desk clock.

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Via: Hack a Day

    

Deadspin Shut Up About Tom Brady’s Legacy | Jezebel Here’s How New Texas Public School Textbooks Wri

By Jane-Claire Quigley on Kinja Roundup, shared by Whitson Gordon to Lifehacker

Deadspin Shut Up About Tom Brady’s Legacy
| Jezebel Here’s How New Texas Public School Textbooks Write About Slavery
| Kotaku Steam Is Getting An Uncensored Sex Game
| Lifehacker Why Facebook Makes Your Images Look Like Crap, and How to Fix It
| Kinja Popular Posts

Via: Lifehacker

    

Transformers, Birthday Cakes in Disguise

By Richard Baguley

[Russel Munro] decided to go all-out for his son’s birthday cake: he made a Transformers robot cake that, well, transforms from a truck into a robot, Optimus Prime style. His impressive build has the actions of the original: first, the front rears up to lift the head, then the back lifts to form the body and the head and arms pop out of the top. Underneath the thin fondant exterior is a 3D printed body, driven by a mechanism in the base. He used fishing line to lift the parts, which is pulled by a motor salvaged from a CD player, being driven by an EasyDriver board from Sparkfun.

The main issue he had to overcome was weight: apparently he underestimated the weight of the fondant that covers the cake, and had to do some last-minute work to strengthen the drive mechanism, and skip plans for the more ornately decorated version that his wife had planned. But the look of glee on his son’s face when he operates it at the party is the best bit. In these days of CGI and computer games, it is good to remind the kids that there is still a lot of fun to be found in ingenuity and liberal quantities of hot glue.

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Via: Hack a Day

    

Homebrew Analog Scope Project Log

By Al Williams

[GK] had some old CRTs lying around, so naturally he decided to build an old school analog scope with one of them. Lucky for us, he’s been documenting his progress. Since it was a big project to tackle, he started out with Spice modeling to work out all the right values.

Prototyping the power supply took some custom transformer winding, but when done, the power supply did the job. Although he’s still wiring up the Z (intensity) axis, the scope is already capable of displaying signals and even text characters using a character generator he built earlier (see video below).

[GK] spends most of the time so far talking about the high voltage power supply design. For the particular tubes he had on hand he needed +200V, -400V, -550V, and 6.3VAC for the CRT heater. This is certainly not the typical Arduino-based digital scope that everyone builds at least once.

We love analog scopes for art projects, logic analyzer conversions, and gaming. Of course, if you don’t have an old CRT in your parts bin, you might consider trying a laser.

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Via: Hack a Day