Heat can be a hacker’s best friend. A little heat can help release a stubborn nut cleanly, and a lot of heat can melt a rusty bolt clean off. An oxy-acetylene torch is handy for these applications, but if you need a more portable setup, and you want enough heat to melt rocks, you might want to look into this field-expedient thermic lance.
Thermic lances have been around a long time in the demolition industry, where cutting steel quickly is a common chore. Commercial thermic lances are just a bundle of steel fuel rods which are set on fire while oxygen is blown down a consumable outer tube. The resulting flame can reach up to 4500°C with impressive results. In need of a similarly destructive device, [NightHawkInLight] came up with a super-simple lance – a small disposable tank of oxygen and regulator, a length of Tygon tubing, and a piece of 5/8″ steel brake line. No need for fuel rods in this design; the brake line provides both fuel and oxygen containment. As you can see in the video below, lighting the little lance without the usual oxy-acetylene torch is no problem – a “wick” of twisted steel wool is all that’s needed to get the torch going. The results are pretty impressive on both steel and rock.
You say you’re fresh out of brake line and still need some “don’t try this at home” action? No problem at all – just hit up the pantry for the materials needed for this tinfoil and spaghetti thermic lance.
The English language needs a word for “awesome and dangerous simultaneously”.
We recently ran into the strange pastime of anvil shooting on YouTube (where else?). The idea is that you pack about a pound (!) of black powder between two anvils and light it up. The powder explodes, and the top anvil gets shot into the air. Hilarity ensues, if everyone’s far enough away and wearing hearing protection.
You’ve probably seen the ads and heard the buzz about the movie “The Martian”, where a Mars astronaut, Mark Watney, is left on the planet and presumed dead. You may have read our previous article about the eponymous book by Andy Weir. That article wondered if the movie would do justice to the book.
It did.
In summary, Watney survives by creating one glorious, but realistic, hack after another. NASA and the other astronauts support him by coming up with some marvelous hacks along the way. One, encompassing the entire spaceship containing the surviving astronauts, is developed by the ship’s Captain, Melissa Lewis. Okay, that one may not be totally realistic but it’s mind blowing.
Reading about the hacks is one thing. Seeing them on the screen adds another dimension. Matt Damon, as Watney, mixing his own waste with water to fertilize potatoes is an image you cannot create in your mind’s eye.
One usual trick Hollywood plays is to switch the actions of minor characters to the major characters. That leaves out the ‘little guy’ in the backroom who frequently has the great idea. Often that’s us. Here they kept the woman who first saw Watney moving equipment on Mars and the astrophysicist who, well, I won’t spoil it, saved the day.
It’s a wondrous trend to see science fiction movies based on real science and not being dumbed down to the point of insult. You know it has to be good if XKCD did a comic. Surprisingly, Hollywood didn’t do a ‘hack’ job on either of these movies.
There are a lot of stupid things you can do with the ports on your computer. The best example is the Etherkiller, an RJ45 plug wired directly to a mains cable. Do not plug that into a router. USB is a little trickier, but with a sufficient number of caps, anyone can build a USB killer that will fry any computer (.ru, Google Translatrix)
The USB Killer v2.0 is [Dark Purple]’s second version of this device. The first version was just a small board with a DC/DC converter, a few caps, and a FET. When plugged in to a computer, the converter would charge the caps up to -110V, dump that voltage into the USB signal wires, and repeat the entire process until the computer died. This second version is slightly more refined, and it now dumps -220V directly onto the USB signal wires. Don’t try this at home.
So, does the device work? Most definitely. A poor Thinkpad X60 was destroyed with the USB killer for purposes of demonstration in the video below. This laptop was originally purchased just for the test, but the monster who created the USB killer grew attached to this neat little laptop. There’s a new motherboard on the way, and this laptop will live again.
Forgot your apartment keys? If you’ve got a ritzy building with a doorman, no problem. If your digs are a little more modest, you might only have an intercom panel that calls up to your apartment so someone can buzz you in. But if nobody is home, you’re out of luck. That’s why [Paweł] spent an hour whipping up an intercom connected automation system pack full of goodies.
The design is pretty simple – an ATMega328P to snoop on the analog phone ringer in the apartment when the intercom call button is pushed, and a relay wired in parallel with the door switch to buzz him in. For added security, the microcontroller detects the pattern of button presses and prevents unwanted guests from accessing the lobby. Things got really fun when [Paweł] added a PCM audio module to play random audio clips through the intercom. As you can see in the video below, an incorrect code might result in a barking dog or a verbal put-down. But [Paweł] earns extra points for including the Super Mario Bros sound clip and for the mashup of the “Imperial March” with “The Girl from Ipanema”.
True, we’ve seen a slightly more polished but less [Mario] version of this project before, but the presentation of this particular hack has us grinning from ear to ear.
Showing any sort of ‘hacking’ on either the big screen or the small often ends in complete, abject failure. You only need to look at Hackers with its rollerblading PowerBooks, Independance Day where the aliens are also inexplicably using PowerBooks, or even the likes of Lawnmower Man with a VR sex scene we keep waiting for Oculus to introduce. By design, Mr Robot, a series that ended its first season on USA a month ago, bucks this trend. It does depressed, hoodie-wearing, opioid-dependant hackers right, while still managing to incorporate some interesting tidbits from the world of people who call themselves hackers.
Desktop Environments
In episode 0 of Mr Robot, we’re introduced to our hiro protagonist [Elliot], played by [Rami Malek], a tech at the security firm AllSafe. We are also introduced to the show’s Macbeth, [Tyrell Wellick], played by Martin Wallström]. When these characters are introduced to each other, [Tyrell] notices [Elliot] is using the Gnome desktop on his work computer while [Tyrell] says he’s, “actually on KDE myself. I know [Gnome] is supposed to be better, but you know what they say, old habits, they die hard.”
[Elliot], running Kali with GnomeWhile this short exchange would appear to most as two techies talking shop, this is a scene with a surprisingly deep interpretation. Back in the 90s, when I didn’t care if kids stayed off my lawn or not, there was a great desktop environment war in the land of Linux. KDE was not free, it was claimed by the knights of GNU, and this resulted in the creation of the Gnome.
Subtle, yes, but in one short interaction between [Elliot] and [Tyrell], we see exactly where each is coming from. [Elliot] stands for freedom of software and of mind, [Tyrell] is simply toeing the company line. It’s been fifteen years since message boards have blown up over the Free Software Foundation’s concerns over KDE, but the sentiment is there.
Biohacking
There’s far more to a hacker ethos than having preferred Linux desktop environments. Hacking is everywhere, and this also includes biohacking, In the case of one Mr Robot character, this means genetic engineering.
In one episode of Mr Robot, the character Romero temporarily gives up his power in front of a keyboard and turns his mind to genetics. He “…figured out how to insert THC’s genetic information code into yeast cells.” Purely from a legal standpoint, this is an interesting situation; weed is illegal, yeast is not, and the possibilities for production are enormous. Yeast only requires simple sugars to divide and grow in a test tube, marijuana actually requires a lot of resources and an experienced staff to produce a good crop.
The promise of simply genetically modifying yeast to produce THC is intriguing; a successful yeast-based grow room could outproduce any plant-based operation, with the only input being sugar. Alas, the reality of the situation isn’t quite that simple. Researchers at Hyasynth Bio have only engineered yeast to turn certain chemical precursors into THC. Making THC from yeast isn’t yet as simple as home brewing an IPA, but it’s getting close, and a great example of how Mr Robot is tapping into hacking, both new and old.
Why Aren’t We Arguing More About This?
The more we ruminate on this show, the more there is to enjoy about it. It’s the subtle background that’s the most fun; the ceiling of the chapel as it were. We’re thinking of turning out a series of posts that works through all the little delights that you might have missed. For those who watched and love the series, what do you think? Perhaps there are other shows worthy of this hacker drill-down, but we haven’t found them yet.
There were plenty of projects and products to be seen at the 2015 World Maker Faire. In the maker pavilion, we found [Rocco Tuccio] showing off Prometheus, his PCB CNC router. Machines like this make prototyping circuits easy. Just place a blank piece of copper clad in the machine, load up your design, and a few minutes later you’ll have a board ready to stuff. Prometheus sports some impressive specs: 7 mil (0.18 mm) trace and space, and a Total Indicated Runout (TIR) of .0001 inches (2.5 micron). Not bad for a spindle turning 40,000 RPM. [Rocco] has spent the last two years designing this machine, and has sourced most of the parts from local US vendors. The unique part of Prometheus is the spindle design. Like many other small PCB routers, Prometheus uses a brushless quadcopter motor for power. Rather than go with a belt system, [Rocco] simplified things to a simple friction drive. The only precision parts he has to worry about are the bearings which hold the cutting bits in place. Prometheus isn’t for sale yet. [Rocco] plans to launch a Kickstarter campaign in the coming months.
A few minutes later we ran into [Victor Aprea] from Wicked Device, showing off the Air Quality Egg V2. [Victor] and his partner [Dirk] ran the design and manufacturing side of the Air Quality Egg, which had a successful Kickstarter campaign back in 2012. The eggs from that campaign can be found online at the project’s website. [Victor and Dirk] have greatly improved on the Egg since then. The biggest update are the sensors. Sensors for ozone, nitrogen dioxide, and sulfur dioxide are now much more sensitive units from SpecSensors. These sensors don’t come cheap though. To keep costs down, [Victor and Dirk] have released three separate versions of the product with different sensor suites. On the connectivity side, the egg is now based upon Wicked Device’s Wildfire, allowing it to connect to WiFi networks. These Eggs mean business too – [Victor and Dirk] obtained permission to co-locate a trio of eggs alongside an official New York State/EPA air quality sensing unit. The Eggs all read within 2 parts per million for carbon monoxide, and 10 parts per billion for sulfur dioxide. As with the original Egg, these devices are open source hardware. Source code is available on Wicked Device’s Github.