Long-term nuclear waste warning messages

A 1993 report from Sandia National Laboratories aimed to communicate a series of messages non-linguistically to any future visitors to a waste site.

The plans included a suggestion that the building be designed so as to create a "dissonant and mournful" whistling sound when wind blew through it, acting as a Level I message.

[1] Working as part of the Human Interference Task Force in 1981, Vilmos Voigt from Eötvös-Loránd University (Budapest) proposed the installation of warning signs in the most important global languages in a concentric pattern around any terminal storage location.

Building on earlier suggestions made by Alvin Weinberg and Arsen Darnay he proposed the creation of an atomic priesthood, a panel of experts where members would be replaced through nominations by a council.

]: Polish science-fiction author Stanisław Lem proposed the creation of artificial satellites that would transmit information from their orbit to Earth for millennia.

Lem acknowledged the problem with his idea was that humans would be unlikely to know the meaning of atomic flowers 10,000 years later, and thus unlikely to decode their DNA in a search for information.

As a response, the podcast 99% Invisible commissioned musician Emperor X to write a song about ray cats for a 2014 episode about long-term nuclear waste warning messages.

[17] Vilmos Voigt from Eötvös-Loránd University (Budapest) proposed the installation of warning signs in the most important global languages in a concentric pattern around the terminal storage location.

Physicist Emil Kowalski [de] from Baden, Switzerland, proposed that terminal storage locations be constructed in such a way that future generations could reach them only with a high technical ability.

Kowalski expected that cultures able to perform such excavations and drilling would be able to detect radioactive material and be aware of its dangers.