The drawing containing two circles in the lower right-hand corner is a drawing of the hydrogen atom in its two lowest states, with a connecting line and digit 1 to indicate that the time interval associated with the transition from one state to the other is to be used as the fundamental time scale, both for the time given on the cover and in the decoded pictures.Įlectroplated onto the record's cover is an ultra-pure source of uranium-238 with a radioactivity of about 0.00026 microcuries. It shows the location of the solar system with respect to 14 pulsars, whose precise periods are given.
![voyager disk map voyager disk map](https://live.staticflickr.com/3290/4081863238_7730c940db_b.jpg)
The drawing in the lower left-hand corner of the cover is the pulsar map previously sent as part of the plaques on Pioneers 10 and 11. The Voyager spacecraft showcasing where the Golden Record is mounted. A circle was used in this picture to ensure that the recipients use the correct ratio of horizontal to vertical height in picture reconstruction. 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. Immediately below this is a drawing of an entire picture raster, showing that there are 512 vertical lines in a complete picture. The drawing immediately below shows how these lines are to be drawn vertically, with staggered "interlace" to give the correct picture rendition. 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.
Voyager disk map series#
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). The top drawing shows the typical signal that occurs at the start of a picture. 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.
![voyager disk map voyager disk map](https://earth-chronicles.com/wp-content/uploads/2017/08/backgrounds_engraving_on_gold_plate_voyager_107241_.jpg)
The Golden Record cover shown with its extraterrestrial instructions.