Peter Parker pretending to chill in Bruce and Tony’s lab when really he’s tricking them into doing his homework for him. Neither of them notice because they’re distracted by their work.

“Mr. Stark?”

“Yeah, kid?”

“I have a Brass statue at home.”

“Where are you going with this?”

“Well, it’s discoloured. I figured it was the Nitorgen in the air.”

“Actually, Hydrogen Sulphide is the gas that discolours Brass, Parker.”

“Cool, thanks!” *Scribbles furiously*


Here is another thermofluorescent compound what I prepared recently. It’s interesting to see that at room temperature it is an off-white powder without visible fluorescence, but when it is cooled down with liquid nitrogen under UV light it first emits a bright green (1.-st gif), than a bright blue color (2.-nd gif). 

According to measurements the green fluorescence of this compound develops at -50 °C and the blue color is emitted under -140 °C. 

Science is simply adorable.