View source for Cathie Capt. Bruce

{{Infobox scientist
| name = Bruce Leonard Cathie
| fields = Harmonic mathematics, ufology
| nationality = New Zealander
| known_for = The "world energy grid" and harmonic UFO theory
}}

'''Bruce Leonard Cathie''' (1930–2013), listed as "Cathie Capt. Bruce," was a New Zealand airline captain, author, and ufologist known for his theory of a global "energy grid" governing the movement of unidentified flying objects. He is listed in ''[[The Worldwide List of Dissident Scientists]]''.

==Life==
Cathie served with the Royal New Zealand Air Force and flew for the New Zealand National Airways Corporation. He reported his first UFO sighting in 1952 near Auckland, which began a decades-long investigation into what he described as regular patterns in sighting locations.

==Grid and harmonic theory==
Cathie proposed that UFO flight paths followed a worldwide grid of energy lines encircling the globe, and that every point on this grid carried a calculable "harmonic" value derived from relationships among light, gravity, and mass. He argued that these harmonic values governed UFO propulsion and anti-gravity effects, and even the conditions under which nuclear weapons could be detonated. He connected his "unified harmonic mathematical system" to the idea that highly advanced scientific knowledge existed in ancient civilizations, and pursued related commercial and research activities under the name Quark Enterprises.

He set out these ideas across six books published between 1968 and 1994, including ''Harmonic 33'' (1968), ''Harmonic 695: The UFO and Anti-Gravity'' (1971), ''Harmonic 288: The Pulse of the Universe'' (1977), ''The Bridge to Infinity'' (1989), ''The Energy Grid'' (1990), and ''The Harmonic Conquest of Space'' (1994).

Cathie's calculations and grid theory have been rejected by mainstream scientists and mathematicians, who regarded them as numerical coincidences rather than physics, though his work remained influential within UFO and alternative-science circles.

==External links==
* [http://www.worldgrid.net/about-bruce-cathie/ About Bruce Cathie (worldgrid.net)]

[[Category:Scientist|Cathie Bruce]]
[[Category:Worldwide List of Dissident Scientists]]