SUMMARYRadium: what's real and what's Killed (Nov 6, 2026; user pushback). Record: radium was everywhere from about 1904 to the 1930s. It was in medicine (radium water, Radithor, which ran about 1925–31; the Revigator crock, 1924–26; Radol; radium cancer therapy) and in cosmetics (Radior, 1918). It also showed up in chocolate, bread, mouthwash, and glow paint on watch dials (the Radium Girls). Many "radium" products held none: the word was a brand. Record: Eben Byers died in 1932 after about 1,000–1,500 bottles of Radithor. Record: radium-223 (Xofigo) is still used in medicine today, for prostate cancer that has spread to the bone (FDA 2013). Killed: radium as stove FUEL. Pierre Curie measured about 100 calories per gram per hour (Nobel lecture), about 0.12 W per gram. A 5 kW parlor stove would need about 43 kg of radium, when one gram cost about $100,000–120,000 in 1921. Record from the user's screenshots (thothanunnaki, "Tartaria Radium Technology"): the pot-belly parts diagram labels Feed Door, Fire Pot, Clinker Door, Ash Pit and Ash Door. Clinker and ash are what burned coal leaves behind. The Royal Red Cross (Roberts, Parry & Co.) is sold as a "Double heater" with "ventilation and circulation"; the smoke goes out a pipe collar the front-view engraving doesn't show. Lens: the radium craze was a real hidden-in-plain-sight poison story (who sold it, who got sick)
OPEN"Radiant Home" stoves vs. "radium" (a word mix-up?). User counter: "it was more easily accessible before." Physics check: radium-226 has a 1,600-year half-life and is made only by uranium decay, so Earth's supply is set by uranium (about 0.34 g of radium per tonne of uranium) and has been about the same for millions of years. KILL
TEST (Rule 15)radium from the 1800s would still be about 94% as radioactive today, so a Geiger counter on surviving antique stoves settles it. Radium watch dials from the 1920s still read hot. THE "SYMBOL": the round disc on the pot-belly's feed door is labeled in the user's own diagram as the "Feed Door Damper," a spin damper you turn to open or close pie-shaped air holes. Record: the radiation trefoil was first drawn in 1946 at UC Berkeley's Radiation Laboratory (Nels Garden's group), so an 1800s stove couldn't carry it as a warning. Pattern: the damper shape came first; the 1946 symbol looks like it. User pushback: "that sign is not 1946." Correction: the radiation-warning USE dates to about 1946 (Nels Garden, 1952 letter, Berkeley); the SHAPE is older. Admission (Rule 13), ORAU Health Physics Museum: Marshall Brucer said the symbol was used at a naval dry dock near Berkeley to warn of spinning propellers, and the trefoil "resembles a Japanese battle flag." Garden only said it was "doodled" to show "activity radiating from an atom." Pattern: a three-blade shape for spinning or moving air (propellers, fans, stove spin dampers) existed before the 1946 warning use
OPENwhat the shape meant before 1946. User Lens: "the illustration is the reset" (the labels may be the rewrite). Physical record to check against the drawing: Record: the Royal Red Cross was made by the Co-operative Foundry Co., Rochester, NY, c. 1885–90 (trade card, Toronto Public Library digital archive 377125; "Red Cross Stoves and Ranges" trade catalogue, UCSB Mss 107). Record: base burners had a coal magazine on top that fed the fire by gravity for a day or more, and glowing mica (isinglass) windows. A stove that glows and runs a day with nobody feeding it can look like it runs on nothing
TESTopen a surviving one: soot, creosote and clinker inside, a flue collar out the back, and a Geiger reading.