This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

Columbia University says it’s reviewing a recent science class in which the professor stripped down to his underwear — and showed September 11th footage.

After doing so, the professor told the class: “you have to strip to your raw and erase all the garbage from your brain when studying quantum mechanics.”

The bizarre scene prompted a student to take out his camera phone and tape the apparent lecture.

Columbia says there needs to be a sense of responsibility along with academic freedom.