concepts · updated 2026-08-10
1961 UN Conference on New Sources of Energy
confidence: medium volatility: cold verified: 2026-08-10fresh
The 1961 United Nations Conference on New Sources of Energy, Rome, is the archive's key institutional milestone in the scientific pre-history of the thermal vision: Bliss reported his Arizona nocturnal-radiation cooling demonstration there, Harry Thomason presented his solar home, and a volume cataloged as its proceedings sits (with a flagged attribution error) in the Solar Fool print collection.
The United Nations Conference on New Sources of Energy, held in Rome in 1961, marks the institutional high point of the archive’s “scientific pre-history” phase — the period when the physics behind the thermal vision was documented in mainstream scientific literature, years before Steve Baer, Harold Hay, or Zomeworks built anything. The archive knows the conference entirely through Farrington Daniels’ Direct Use of the Sun’s Energy (Yale, 1964), which surveys and footnotes its papers, and through a proceedings volume cataloged in the Solar Fool print collection.
The Bliss presentation
The conference’s central contribution to this archive is Ray Bliss‘s report of a working nocturnal radiation cooling system — “Performance of an Experimental System Using Solar Energy for Heating and Night Radiation for Cooling a Building” (Daniels, Ch. 9, footnote 170). At a house in Arizona, Bliss used an unglazed flat-plate collector and a black cloth radiator 280 ft² in area; the “cold,” amounting to 120,000 BTU, was stored in a 10-ton pile of rocks buried in the ground — equivalent to about 2 tons of refrigeration (Daniels §13.3).
This is 1961 experimental data for night-sky radiative cooling applied to a building — six years before Harold Hay‘s Phoenix Skytherm prototype and four decades before Baer’s Cool Cell. Daniels’ accompanying figure for the mechanism, 10–35 BTU/ft²/hr (2.9–10.3 W/ft²), matches Baer’s independent 2002 heated-vs-unheated-plates finding that night radiation exceeds 9.5 W/ft².
Other conference papers in the archive
- Harry Thomason — “Solar Space Heating, Water Heating, Cooling in the Thomason Home” (Daniels, Ch. 9, footnote 174). The conference places Thomason — later grouped by Hay with Baer as a “creative activist” and excluded from the 1973 NSF solar meeting — inside the same scientific literature Daniels surveyed.
- H. Tabor — “Large Area Solar Collectors (Solar Ponds) for Power Production” (Daniels, Ch. 8.4): salt-gradient heating ponds using Dead Sea brine, a water-as-thermal-mass application distinct from Hay’s cooling roof ponds.
Daniels’ Chapter 9 surveys solar houses “as of the 1961 UN Conference”: fewer than 20 solar-heated buildings existed in the world, all between 35°N and 42°N.
The proceedings in the Solar Fool print collection
The Joule Heist physical-book catalog (Libib) lists item 42 as “Solar 2: Proceedings of the UN Conference on New Sources of Energy, Rome 1961” — Cloudburst Press, 1978, 315 pp, ISBN 978-0-88930-031-6, attributed to Steve Baer. The attribution is flagged as a likely Libib cataloging error: Baer cannot be the author of 1961 UN conference proceedings, which were published by the UN, not Cloudburst Press. The ISBN is a real Cloudburst Press book, but the title is probably wrong; the physical book needs examination to determine its actual identity. The entry also appears in the print-books list in Books with the same caveat.
Why it matters for this archive
The conference is the clearest single data point for the archive’s “two traditions” finding: the institutional tradition (Bliss, Yanagimachi, Daniels) had documented the physics and demonstrated the application by 1961, yet the vision was not built at scale — that work fell to the counterculture tradition of Baer, Hay, and Thomason, working outside institutional channels. The 1961 demonstration sits at the head of the lineage the archive traces from Bliss through Hay’s Skytherm to the Cool Cell.