Hackaday Podcast Ep6 – Reversing iPod Screens, Hot Isotopes, We <3 Parts, and Biometric Toiletseats

What’s the buzz in the hackersphere this week? Hackaday Editors Elliot Williams and Mike Szczys recap their favorite hacks and articles from the past seven days. In Episode Six we cover an incredible reverse engineering effort Mike Harrison put in with iPod nano replacement screens. We dip our toes in the radioactive world of deep-space power sources, spend some time adoring parts and partsmakers, and take a very high-brow look at toilet-seat technology. In our quickfire hacks we discuss coherent sound (think of it as akin to laminar flow, but for audio), minimal IDEs for embedded, hand-tools for metalwork, and …read more

In Space, No One Can Hear You Explode: The Byford Dolphin Incident

“It wouldn’t happen that way in real life.” One of the most annoying habits of people really into the “sci” of sci-fi is nitpicking scientific inaccuracies in movies. The truth is, some things just make movies better, even if they are wrong.

What would Star Wars be without the sounds of an epic battle in space where there should be no sound? But there are plenty of other examples where things are wrong and it would have been just as easy to get them right — the direction of space debris in the movie Gravity, for example. But what …read more

Hack My House: Garage Door Cryptography Meets Raspberry Pi

Today’s story is one of victory and defeat, of mystery and adventure… It’s time to automate the garage door. Connecting the garage door to the internet was a must on my list of smart home features. Our opener has internet connection capabilities built-in. As you might guess, I’m very skeptical of connecting a device to the internet when I have no control over the software running on it.

The garage door is controlled by a button hung on the garage wall. There is only a pair of wires, so a simple relay should be all that is needed to simulate …read more

The “Impossible” Tech Behind SpaceX’s New Engine

Followers of the Church of Elon will no doubt already be aware of SpaceX’s latest technical triumph: the test firing of the first full-scale Raptor engine. Of course, it was hardly a secret. As he often does, Elon has been “leaking” behind the scenes information, pictures, and even video of the event on his Twitter account. Combined with the relative transparency of SpaceX to begin with, this gives us an exceptionally clear look at how literal rocket science is performed at the Hawthorne, California based company.

This openness has been a key part of SpaceX’s popularity on the Internet (that, …read more

Every Digital Clock Is Made Of Analog Components

In 2008, an art studio out of Stockholm released the ClockClock, a digital clock with an analog heart. The ClockClock used 24 individual analog clocks — hour and minute hands and all — to display time digitally. The world went crazy, Pinterest blew up, and everyone wanted a digital analog clock until the next interesting project distracted the masses.

This was ten years ago, and for a project that’s neck deep in stepper motors, timekeeping, and 3D printed parts, we haven’t seen a DIY project that puts these tools together to build a clone of the ClockClock. Until now, that …read more

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Biodegradable Implants Supercharge Nerve Regeneration

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By Brian McEvoy | February 16, 2019

Controlled electrical stimulation of nerves can do amazing things. It has been shown to encourage healing and growth in damaged cells of the peripheral nervous system which means regaining motor control and sensation in a shorter period with better results. This type of treatment is referred to as an electroceutical, and the etymology is easy to parse. The newest kid on the block just finished testing on rat subjects, applying electricity for one, three, or six days per week in one-hour intervals. The results showed that more treatment led to faster healing. The kicker is that the method of applying …read more
Build Your Own Dial-up ISP With A Raspberry Pi

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By Brian Benchoff | February 16, 2019

The bing-bongs, screeches, and whiirings of a diai-up modem are long forgotten now. For good reason. Dial up was slow, and if you’re one of those unlucky people reading this and waiting for the animated gif above this paragraph to load, you have our condolences. But still, nostalgia. It bit [Doge Microsystems] hard, and now there’s a dial-up ISP on [Doge]’s desk. Why? For fun, probably, and if you’re going to retrocompute, you might as well go the whole way.

The setup for this astonishing feat of dial-up networking is an ISA modem inside a ‘lunchbox’ computer running what is …read more
Lego Monorail From Your 3D Printer

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By Jenny List | February 16, 2019

If you had to guess the age of a person hailing from a country in which Lego is commonly available, you might very well do it by asking them about the Lego trains available in their youth. Blue rails or grey rails, 4.5, 9, or 12 volt power, and even somewhat unexpectedly, one rail or two. If that last question surprises you we have to admit that we were also taken aback to discover that for a few years in the 1980s everybody’s favourite Danish plastic construction toy company produced a monorail system.

[Mike Rigsby] had a rather ambitious Christmas …read more
How Do You Etch Something You Can’t Move?

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By Tom Nardi | February 16, 2019

We probably don’t need to tell this to the average Hackaday reader, but we’re living in a largely disposable society. Far too many things are built as cheaply as possible, either because manufacturers know you won’t keep it for long, or because they don’t want you to. Of course, the choice if yours if you wish to you accept this lifestyle or not.

Like many of us, [Erik] does not. When the painted markings on his stove become so worn that he couldn’t see them clearly, he wasn’t about to hop off to the appliance store to buy a new …read more
CNC Tellurion Lets You See the Earth and Moon Dance

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By Dan Maloney | February 16, 2019

Kids – they’re such a treasure. One minute you’re having a nice chat, the next minutes they’re testing your knowledge of the natural world with a question like, “Why can we see the Moon during the day?” And before you know it, you’re building a CNC Earth-Moon orbital model.

We’ve got to applaud [sniderj]’s commitment to answering his grandson’s innocent question. What could perhaps have been demonstrated adequately with a couple of balls and a flashlight instead became an intricate tellurion that can be easily driven to show the relative position of the Earth and Moon at any date; kudos …read more
You Are Your Own Tactile Feedback

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By Brian McEvoy | February 15, 2019

[Maurin Donneaud] has clearly put a lot of work into making a large flexible touch sensitive cloth, providing a clean and intuitive interface, and putting it out there for anyone to integrate into their own project.. This pressure sensing fabric is touted as an electronic musical interface, but if you only think about controlling music, you are limiting yourself. You could teach AI to land a ‘copter more evenly, detect sparring/larping strikes in armor, protect athletes by integrating it into padding, or measure tension points in your golf swing, just to name a few in sixty seconds’ writers brainstorming. This …read more
This Kerosene Lantern Becomes A Compact Bioreactor

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By Lewin Day | February 15, 2019

A bioreactor is a useful thing to have in any biology lab. Fundamentally, it’s a tank in which biological activity can be nurtured and controlled. [The Thought Emporium] needed a visual aid for an upcoming video on bioluminescent bacteria, but figured a single test tube full of the little critters just wasn’t visually striking enough. Thus began the build to turn a kerosene lantern into a full-featured bioreactor.

The ideal bioreactor for the project needed to be visually appealing, biologically safe, and to have the possibility for continuous operation. First, the lantern’s base was sealed with aluminium plate and silicone …read more