THEY DON'T MAKE CHEMTRAILS LIKE THEY USED TO

IN DAYS OF OLD, WHEN GASLIGHTING MEANT LIGHTING WITH  GAS, THAT LIGHT WAS BRIGHTENED BY THORIUM OXIDE 'WELSBACH MANTLES'.

THORIA'S CURIOUS INFRARED EMISSIVITY ENHANCED ITS INCANDESCENCE, AND LED HUGHES AIRCRAFT TO PATENT A NEW USE FOR THE OLD RADIOACTIVE REFRACTORY: