Student or Learner
Definition of head, Macmillan Online Dictionary: Free American English Dictionary and Thesaurus
stand/turn something on its head
to make someone think in a completely new way about something
Einstein’s theories stood the mathematical world on its head.
Is this idiom used in the following sentence?
Ford Motor: On the Road to Recovery - TIME
But conventional wisdom was stood on its head last fall when Ford parted company with General Motors Corp. and Chrysler Group LLC by forgoing federal help during the most perilous times for automakers.
Don't people use "turn something on its head" more often than "stand something on its head"?