Tony Stark and Bruce Banner do science!

The Ultimate Form of Science: A Lightbulb!

Lightbulb with SCIENCE! written under it.

Science! They make lightbulbs turn on!

lightswitch

FINALLY I understand how to turn on a light!!

man presses mysterious button. is surprised to discover it just was the light switch.

Man holding a question mark ball gets an idea while a potentially metaphorical lightbulb comes on above his head.

thomas edison