Smashing The Atom: A Brief History Of Particle Accelerators

When it comes to building particle accelerators the credo has always been “bigger, badder, better”. While the Large Hadron Collider (LHC) with its 27 km circumference and €7.5 billion budget is still the largest and most expensive scientific instrument ever built, it’s physics program is slowly coming to an end. In 2027, it will receive the last major upgrade, dubbed the High-Luminosity LHC, which is expected to complete operations in 2038. This may seem like a long time ahead but the scientific community is already thinking about what comes next.
Recently, CERN released an update of the future European strategy for particle physics which includes the feasibility study for a 100 km large Future Circular Collider (FCC). Let’s take a short break and look back into the history of “atom smashers” and the scientific progress they brought along. Continue reading “Smashing The Atom: A Brief History Of Particle Accelerators”

The Most Flexible Synthesizer Is DIY, Raspberry Pi

[Ivan Franco] sent us this great synthesizer project that he’s working on. Or maybe it’s more like a synthesizer meta-project: a synthesizer construction set. You see, what Pryth has is a Raspberry Pi inside that’s running a custom distribution that includes SuperCollider to generate the sound, OSC for the communication layer, and a Teensy with up to 80 (!) multiplexed analog inputs that you’ll connect up to whatever hardware you desire.

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Raspberry Pi Radio Makes The Sweet Music Of Bacteria

We’ve noticed a lot of musical groups are named after insects. Probably has something to do with the Beatles. (If you study that for a while you’ll spot the homophonic pun, and yes we know that the Crickets inspired the name.) There’s also Iron Butterfly, Adam Ant, and quite a few more. A recent art project by a Mexican team — Micro-ritmos — might inspire some musical groups to be named after bacteria.

The group used geobacter — a kind of bacteria found in soil — a Raspberry Pi, an Arduino, and a camera to build an interesting device. As it looks at the bacteria and uses SuperCollider to create music and lighting from the patterns. You can see a video of Micro-ritmos, below.

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Making Music With Clojure And Bananas

At this point, the banana piano is a pretty classic hack. The banana becomes a cheap, colorful touch sensor, which looks sort of like a piano key. The Arduino sets the pin as a low-level output, then sets the pin as an input with a pull up resistor. The time it takes for the pin to flip from a 0 to a 1 determines if the sensor is touched.

[Stian] took a new approach to the banana piano by hooking it up to Clojure and Overtone. Clojure is a dialect of Lisp which runs in the Java Virtual Machine. Overtone is a Clojure library that provides tons of utilities for music making.

Overtone acts as a client to the Supercollider synthesis server. Supercollider has been around since 1996, and provides a wide array of sound synthesis functions. Overtone simply tells Supercollider what to do, letting you easily program sounds in Clojure.

The banana piano acts as an input to a Clojure program. This program maps the banana to a musical note, then triggers a note on Overtone’s built-in piano sampler. The result is a nice piano sound played with fruit. Of course, since Overtone and Supercollider are very flexible, this could be used for something much more complex.

After the break, a video of the banana piano playing some “Swedish Jazz.”

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Recreating The THX Deep Note

THX logo

Few sounds are as recognizable as the THX Deep Note. [Batuhan] did some research, and set about recreating the sound. The original Deep Note (mp3 link) was created in 1982 by [Dr. James A. Moorer]. [Dr. Moorer] used the Audio Signal Processor (ASP) (AKA SoundDroid) to create the sound. The ASP was a complex machine to program. The Deep Note took about 20,000 lines of C code to program. The C code was compiled to about 250,000 discrete statements to command the ASP.

Only one ASP was ever built, and LucasFilm owned it. Instead of recreating the hardware, [Batuhan] used SuperCollider to recreate the sound. Just like the ASP, SuperCollider is a tool for real-time audio synthesis. The difference is that SuperCollider is open source and runs on modern computers. [Batuhan] used his research and ears to perform an analysis of the Deep Note. He created two re-creations. The first is carefully constructed to replicate the sound. The second is a Twitter worthy 140 character version. Both versions are reasonable facsimiles of the original Deep Note, though they’re not quite perfect to our ears.

[Batuhan] isn’t the only person working on recreations. Deep Note in 1KB of JavaScript can be heard at We’d love to hear other versions created by Hackaday readers!

[Via Reddit]

Making Music With The Eee PC

Create Digital Music has been watching the Asus Eee PC closely. The laptop’s portable nature and low price-cheaper than a turntable-have made them desirable to both producers and performers. CDM has collected links to many people that are figuring out how to leverage the lightweight rig. [Dan Stowell] put together a tutorial for SuperCollider, the real time audio synthesis engine. The machine is good for simple text based tracker software too. On the Windows side, a lot of software, like Guitar Rig, can be enabled with just a little display driver hacking. This really makes us wonder when we’ll see the first Eee PC keytar mod.