Our Galaxy Expressed as Jazz

Rather than take pictures of the Milky Way, astronomer Mark Heyer decided to capture it in a completely different art form.

This amazing video is part of an article from Interesting Engineering depicting the motion of the Milky Way translated into a musical score.

While most astronomers love capturing unique and stunning images of the Milky Way, one astronomer wanted to capture the galaxy in a unique way. Astronomer Mark Heyer expressed how the galaxy moves in the musical composition “Milky Way Blues.”

This is no Vivaldi’s “Four Seasons,” as the music isn’t simply inspired by the galaxy’s sounds; it is the galaxy’s sounds. The University of Massachusetts Amherst professor created an algorithm that transformed the data into a series of notes.

“This musical expression lets you ‘hear’ the motions of our Milky Way galaxy,” he says. “The notes primarily reflect the velocities of the gas rotating around the center of our galaxy.”

Heyer assigned notes to the atomic, molecular and ionized gases that can be found between the stars in our galaxy. He then gave different pitches, tones and note count to the velocity and spectra of each gas phase. For example, atomic gases were given an acoustic bass sound, molecular gasses got woodblocks and piano, and ionized gases became saxophone notes.

“Astronomers make amazing pictures, but they’re a snapshot in time and therefore static. In fact, stars and interstellar gas are constantly moving through the galaxy but this motion is not conveyed in those images. The Milky Way galaxy and the universe are very dynamic, and putting that motion to music is one way to express that action.” He chose to compose this piece using a pentatonic scale – with five notes in the octave instead of seven – and in a minor key, because “when I heard the bass notes it sounded jazzy and blue,” he said.

You can read more about this incredible process here.

Watch the video here.

Enjoy!

Robert Gulley, AK3Q, is the author of this post and a regular contributor to the SWLing Post. Robert also blogs at All Things Radio.

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Dan shares photos from journalist trip to Zanzibar in 1986

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Many thanks to SWLing Post contributor, Dan Robinson, who writes:

Here’s a blast from the past that might be interesting reading for the SWLing Post.

Back in 1986, just before ending my three year tour as VOA East Africa bureau chief, I had an opportunity to visit Zanzibar, with a group of journalists. Back then, Zanzibar was still under the socialist government in charge at the time, and was still attached to Tanzania’s socialist government.

Zanzibar town was full of old structures, and clay/stucco type buildings [see photo at top of page]–it was a wonderfully exotic place, with pristine beaches. The main hotel at the time was in poor condition — this was way before any of the extensive hotel development that the island has seen in recent decades.

One day we were traveling across the island, but I made a point of stopping at what was then still Radio Tanzania/Zanzibar. This was of course years before that station would become ZBC, which remains on the air today, and that time the power was still far lower than the station we know today that serves some fairly wide sections of East Africa and up into the Gulf region.

I hadn’t remembered snapping this photo, but found it recently while going through some old prints. This is what I believe to be Radio Tanzania/Zanzibar as it looked back in 1986 [see below].

Another photo [below] shows old Zanzibar town (shot taken from just off the shore).

Two other shots [below] show a graveyard on Grave Island, off Zanzibar, with one of the stones belonging to someone named Henry Bodley Carpenter (click here for more info) who served on the H.M.S. Briton and died in 1873.

Thanks so much, Dan, for taking the time to share these photos of Zanzibar with us. I imagine your work with the Voice of America took you to many corners of our wonderful planet!

I still get a small thrill when I put Zanzibar in the logs! Thank you again.

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The history of Deutsche Welle’s interval signal and signature tune

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(Source: Deutsche Welle via Mike Hansgen)

Beethoven on the air: the DW signature tune

When Deutsche Welle went on the air 65 years ago, the broadcaster opted for a melody from “Fidelio” for its signature tune. Ludwig van Beethoven’s opera is about an act of liberation.

A political prisoner is starved and nearly tortured to death because the prison’s military governor knows that the prisoner could incriminate him. The incarcerated man’s wife masquerades as a young man and, thus camoflaged, makes her way into the dungeon. When the governor attempts to stab the prisoner, the woman jumps between them and pulls out a pistol. At that very moment, trumpets sound out and the Minister, a higher authority, enters the scene. A friend of the prisoner, he recognizes what has been going on and sets the political prisoners free.

At this happy ending of the opera “Fidelio” by Ludwig van Beethoven, Minister Fernando sings the words “Es sucht der Bruder seine Brüder” (The brother seeks his brothers), and continues: “Und kann er helfen, hilft er gern” (And if he can help, he does so gladly.)

The melody to the words is anything but catchy; it is nearly ungainly in fact. Nonetheless, it was chosen as the signature tune when Germany’s international broadcaster began its shortwave radio transmissions on May 3, 1953.

The symbolism in the words

The choice not only had to do with the musical motif, but was also based on the symbolism in the words. Only eight years after World War II’s end, building new friendships and international relationships was no easy task for the new Federal Republic of Germany.

One sought to proceed in a “brotherly” manner with listeners and partners abroad through friendly exchange. Trust was to be built in a fair and impartial sharing of information.

For many years, the melody, played on a celesta keyboard, penetrated the constant ebb and flow of interference noise on the shortwave radio spectrum. It thus made its way to the speakers of shortwave radio sets around the world – often in endless repetitions leading up to the news at the top of the hour.

Click here to download a clip of the DW interval signal recorded on February 22,1982 at 1400 UTC. (Source: IntervalSignal Database)

The broadcaster then had its headquarters in Cologne, and the Beethovenfest classical music festival took place only sporadically in Bonn, 30 kilometers upstream the Rhine.

The move from Cologne to Bonn, and the media partnership with the re-established and much bigger music festival, had to wait until the new millennium. Then it seemed only fitting that Deutsche Welle should once again associate itself with Beethoven.[…]

Continue reading and listen to a number of “Fidelio” variations at Deutsche Welle.

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VOK shifts broadcast schedule due to North Korea time zone change

“Burundi to suspend BBC and VOA radio broadcasts”

Dan spots a rare Eddystone 40A HF receiver on eBay

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Many thanks to SWLing Post contributor, Dan Robinson, who shares a rare Eddystone 40A find on eBay. Dan notes:

What is interesting also about this is the similarity to the Drake SW8 — notably the
carrying handle.

40A s are rarely seen on the used market, and in line with other older Eddystone
equipment, they are built like a tank.

I agree, Dan! This receiver is built like a tank! It would be a seriously fun (though relatively heavy) field radio–I love how even the chassis corners are rounded and the entire radio can be protected for transport. Obviously, these were designed with durability and stability in mind. Great find and thanks for sharing!

Click here to view on eBay.

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Sound Designer Ben Burtt Reveals Radio’s Influence in Star Wars films

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Today is popularly known as Star Wars Day––and I’m reminded of one of my favorite posts, featuring Star Wars sound designer, Ben Burtt, who to my surprise, contacted me to answer a question I published here on the SWLing Post. Once again, here it is. Enjoy! And “May the fourth be with you!”

SWLing Post readers may remember a post I published in which I believed I’d identified a familiar shortwave time signal station in the Battle of Hoth scene from The Empire Strikes Back.

To recap, here’s the scene in The Empire Strikes back–listen carefully:

Now listen to the recording of Canadian Time Station CHU I made recently–note the tone and duration of the data pips:

Upon hearing this, I went so far as to muse that the Star Wars sound designer might be a radio listener. I asked our readers if anyone could confirm this–?

Well, we’ve got our answer! I’m truly indebted to an SWLing Post reader who passed my post along to his friend, Ben, who could provide this definitive response:

“This is Ben Burtt, sound designer of the Star Wars films. A friend sent me a link to this blog thinking I would like to comment.

Ben Burtt with his recording gear, circa 1980. The mike on the stand at Ben’s feet is one from his grandfather’s ham radio station in the 1950s, or possibly earlier.

“The answer is yes, I have always been a ham radio enthusiast.”

“My grandfather, Harold Burtt, operated W8CD out of his home in Columbus, Ohio 1930s-1960s. I was enthralled as a kid listening to the sounds on his receiver. I heard alien worlds and cosmic ‘voices.’

Harold Burtt, W8CD. (Chairman of the Psychology Dept Ohio State) with his attic gear, approximately 1935

“So not only did I record his radio, but continued to do so on the Star Wars series and Star Trek as well.

My memory of the Hoth transmission was that it was WWV but it could have been CHU since I was recording all that interested me on the dial.”

Terrific! Thank you, Ben, for taking the time to respond. As I said, you’ve certainly started off this radio enthusiast’s year on the right wavelength…no doubt some of our readers will agree.

Indeed, the powerful sonic experience of the Star Wars and Star Trek films has, in my estimation, helped shape many of us into the radio/sound enthusiasts we’ve become–myself certainly included. Thank you, Ben, for this! You’ve sharpened my ear to a greater appreciation of sound, especially filmic sound, and your work in particular.

For readers who are less familiar with Ben Burtt’s work, check out his Wikipedia page and IMDB profile–you’ll find he’s been the sound designer on numerous influential films including the recently released Star Wars: The Force Awakens.

A special thanks to Ben Burtt for sharing these wonderful photos and kindly giving me permission to use them here on the SWLing Post. I must say, considering my love of radio in the thirties, I especially like that photo of Harold Burtt (W8CD) in his shack.

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