CACrown ArchivesThe cinema collection
Menu
Research dossier · General Reference

MEDUSA (weapon)

directed-energy non-lethal weapon

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionApr 19, 2026
Entity authorityQ6715313
Source-derived summary

MEDUSA (Mob Excess Deterrent Using Silent Audio) is a directed-energy non-lethal weapon designed by WaveBand Corporation in 2003–2004 for temporary personnel incapacitation. The weapon is based on the microwave auditory effect resulting in a strong sound sensation in the human head when it is subject to certain kinds of pulsed/modulated microwave radiation. The developers claimed that through the combination of pulse parameters and pulse power, it is possible to raise the auditory sensation to a "discomfort" level, deterring personnel from entering a protected perimeter or, if necessary, temporarily incapacitating particular individuals. In 2005, Sierra Nevada Corporation acquired WaveBand Corporation.

Description

According to the U.S. Navy in 2004, the system would be "portable, low power, have a controllable radius of coverage, be able to switch from crowd to individual coverage, cause a temporarily incapacitating effect, have a low probability of fatality or permanent injury, cause no damage to property, and have a low probability of affecting friendly personnel". In addition to perimeter protection and crowd control, a proposed application of MEDUSA was "for use in systems to assist communication with hearing impaired persons".

Fate

The project received a positive initial evaluation from the Navy. However, Sierra Nevada Corporation had discontinued the project as of 2008, "possibly because it may have [been] shown to permanently damage human brain tissue".

Editorial summary

Begin with the source’s own compact description: “MEDUSA (weapon)” is directed-energy non-lethal weapon. The dossier treats that line as a proposition to test through MEDUSA, weapon and directed-energy, not as a finished interpretation.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—2003, 2004, 2005, 2008—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, MEDUSA, weapon and directed-energy is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “directed-energy non-lethal weapon” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Apr 19, 2026. The linked authority identifier is Q6715313. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2003, 2004, 2005 and 2008.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “MEDUSA (weapon)”, its source revision and the description used here.
  2. Expand the search: follow MEDUSA (weapon) primary sources, MEDUSA (weapon) archive and MEDUSA research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “MEDUSA (weapon)”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which cited source is closest to the event, object or claim?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from MEDUSA (weapon)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.