The IgNobel Prize winners for 2012 were announced 20 September at Harvard University.

The prizes celebrate the odd and unusual and help increase interest in scientific research. They honor research that “makes people laugh and then think.”

The Psychology prize goes to researchers who found that leaning to the left makes the Eiffel Tower seem smaller.

The Acoustics prize goes to scientists who created the SpeechJammer-a device that disrupts a person’s speech.

The Neuroscience prize goes to scientists who found that brain researchers could find brain activity in anything, including a dead fish, by using complicated instruments and simple statistics.

The Chemistry prize goes to researchers who figured out why people who lived in some houses in one Swedish town had their hair turn green.

The Physics prize went to scientists who figured out the factors that determined the shape of a ponytail.

The Literature prize goes to the U.S. General Accounting Office for issuing a “report about reports about reports that recommends the preparation of a report about the report about reports about reports.”

The Fluid Dynamics prize goes to the authors of a study on what happens when people walk while carrying a cup of coffee.

The Anatomy prize goes to researchers who discovered that chimps could identify each other by seeing photos of their behinds.

The Medicine prize goes to researchers for advising doctors who perform colonoscopies how to lower the chances that their patients would explode.

And finally, the Peace prize goes to a Russian company that converted old ammunition into new diamonds.