WHY WERE RADIUM FIREPLACES REMOVED?
According to the video, in the 19th century, a simple lump of radium would have heated a house for a thousand years. The displayed equivalent: 20,000 tons of coal. Then the bomb drops: removed.
Edison is sitting there, in front of a green hearth. The atomic number 88 is shown as a symbol of infinity. Radium is described there as a conductive metal, more so than copper, supposed to transmit its frequency to the body.
You see a legend built on generated images in it. Or the removal of a source that people no longer wanted to see in homes. Both readings exist. The official history, however, speaks of poison, not miracle.