why's it glowing?

ever thought about why glow in the dark stuff glows in the dark?.. of course you have. youve thought of evrything havn't you? well ive never thought about it. another one of lifes great gifts taken for granted i guess. i stuck me this afternoon, as i put away debbies glow in the dark silly putty, turned of the lamp covered in glow in the dark stars and planets, and walked outside to see ben with a glow in the dark frizbe in his mouth. ( ben is not human. fyi ) ( please dontg tell this to ben. ) so what DOES make it glow? there is some special ingredient. of this i am sure. but what is it? what? whats that you say? google it? no. no i wont google it. somwethings have to be left to the good old ask around till you find someone who knows. what do you think people did before google was invented? ( its true. there was a time with no google. ) so here, im asking. WHAT MAKES IT GLOW? ( sub question: where can i get some. and what happens if i eat it? ). ( i cant beleave you. you were actualy about to go to google and look it up. after i just got done telling you about this being a google free question. the newrve you have. to go behind my back like that. some friend you are.) ( hey! i heard that. and yes. yahoo is also excluded. its in the google family. ) so really, go ask someone what makes stuff glow, and get back to me. i wish i could offer a prize. to the person who found it first. but i cant. anyone heard from Playa J latly? ( last i heardhe was bound with barbed wire in the back of a horse drwn carrage crossing the Chilain border. this is not gosip. purley fact. i sware. seriously. google it. )