Show Makes Powerful Light A Adding h ng a minute part of a rare Iri m metal t ll rubidium to mercury usually used setI in mercur mercury lamps has bas resulted In the development of ot a J lamp whoso whose light approximates sunlight The The- metal causes the lamp to give red In In Int t n addition to the erth P The lamp Is said to have hav Jt p IT ten t n times time's is ds as long as an nit ot- ot fr Incandescent lamp R Rubidium bl co o te 7 7 a dram but only one five five- i part of ot the m metal tal Is used In IIi each ch lamp to change the light I t i luie ii- ii Ic from green een to light red tiel 1 2 isly- isly physicists ph ha hind had Improved the mercury lamp by a adding dIng potassium to the to the the- mercury cpr but the potassium is sald to the glass of or the lamp Popular Popular Mechanics J n CS Magazine S t |