The Phonograph Lives! - Voyager

Memories of the Phonograph

 

By Doug Boilesen

The Phonograph Lives! - Voyager 1 and Voyager 2

The revolution that began with the Phonograph is a continuum.

We still have record players and descendent technologies that record and reproduce sound waves.

And most remarkably, launched one hundred years after the invention of the phonograph, Voyager 1 and Voyager 2 are travelling in interstellar space each carrying a phonograph record that is Earth's "message in the bottle" and "greetings from Earth" (3).

 

Voyager 1 launched on September 5, 1977 (100 years after the invention of the Phonograph) - NASA/JPL (4)

 

 

Mounting the Golden Record NASA/JPL (5)

 

 

The "Golden Record" attached to the side of Voyager 1 (5)

 

 

 

The audio of the Voyager's Golden Record is designed to be played at 16-2/3 revolutions per minute (this is the Golden Record's cover).

 

 

The following was provided by NASA/JPL on their Voyager web page regarding the record cover's instructions for extraterrestrial operation of the 'phonograph'.

The information in the upper right-hand portion of the cover is designed to show how pictures are to be constructed from the recorded signals. The top drawing shows the typical signal that occurs at the start of a picture. The picture is made from this signal, which traces the picture as a series of vertical lines, similar to ordinary television (in which the picture is a series of horizontal lines). Picture lines 1, 2 and 3 are noted in binary numbers, and the duration of one of the "picture lines," about 8 milliseconds, is noted. The drawing immediately below shows how these lines are to be drawn vertically, with staggered "interlace" to give the correct picture rendition. Immediately below this is a drawing of an entire picture raster, showing that there are 512 vertical lines in a complete picture. Immediately below this is a replica of the first picture on the record to permit the recipients to verify that they are decoding the signals correctly. A circle was used in this picture to ensure that the recipients use the correct ratio of horizontal to vertical height in picture reconstruction.

 

 

Images, sounds and music on the Voyager's "Golden Record" are intended to represent life on planet Earth. However, as Carl Sagan noted, the record will only be played "if there are advanced spacefaring civilizations in interstellar space") (6).

Perhaps the "Golden Record" will never be played. But there is still the mind-bending possibility that the Voyager record will exist longer than humans on Earth.

Visit the Jet Propulsion Laboratory (JPL) website, read more about the "Golden Record" and see real-time numbers of how far these golden records have travelled.

 

 

Voyager 1's Pale Blue Dot Earth as a small blue dot in a fuzzy beam of light.

Source: NASA/JPL-Caltech

Published: February 5, 2019

Historical Date: February 14, 1990

The Pale Blue Dot is a photograph of Earth taken Feb. 14, 1990, by NASA’s Voyager 1 at a distance of 3.7 billion miles (6 billion kilometers) from the Sun. The image inspired the title of scientist Carl Sagan's book, "Pale Blue Dot: A Vision of the Human Future in Space," in which he wrote: "Look again at that dot. That's here. That's home. That's us."

See NASA's Voyager 1's Pale Blue Dot for more information about the 30th anniversary's new version of one of the most iconic images taken by NASA's Voyager mission known as "the Pale Blue Dot.

For the definitive written story of the Voyager Interstellar Record, a.k.a. the Golden Record, why it was created, how the contents were selected and specifically what is on the record, read Murmurs of Earth The Voyager Interstellar Record by Carl Sagan, F.D. Drake, Ann Druyan, Timothy Ferris, Jon Lomberg, and Linda Salzman Sagan, Ballantine Books ©1978.

For an on-line story of The Golden Record, see Voyager NASA Jet Propulsion Laboratory California Institute of Technology, The Golden Record.

The Voyager Golden Record has been released as a 3 translucent gold 140 gram vinyl LPs boxed set by Ozma Records. Also included is a full-color 96-page softcover book containing all images included on the original Voyager Interstellar Record, gallery of images transmitted back from the Voyager probes, and a new essay by Timothy Ferris, producer of the original golden record.

 

 

 

 

 

 

For Factola about the Phonograph Revolution in the 21st Century visit

Recorded Sound - A Changing Revolution