The 2012 Ig Nobel Prizes, a whimsical reply to the more serious Nobel Prizes, announced the winners of the 22nd edition at a hilarious ceremony held at Harvard University. The winners, all ten of them, walked away with The Stinker - the official mascot of the ceremony and some of them also demonstrated or showed off the discoveries and innovations that won them the award.

The Ig Nobel Prizes are awarded by science humor magazine Annals of Improbable Research and are meant to celebrate the unusual and encourage scientific research. The publication claims the Ig Nobel Prizes winners have all done something "that first makes people laugh and then makes them think".

The prizes have a deserved reputation for unearthing some truly odd researches... like the Dutch and Russian psychologists who discovered that leaning to the left made the Eiffel Tower seem smaller!

Check out the complete list of winners and their amazing but silly discoveries

Psychology Prize - Anita Eerland, Rolf Zwaan and Tulio Guadalupe for the study "Leaning to the Left Makes the Eiffel Tower Seem Smaller"

Peace Prize - The SKN Company (Russia) for converting old Russian ammunition into new diamonds

Acoustic Prize - Kazutaka Kurihara and Koji Tsukada (Japan) for creating the SpeechJammer - a machine that disrupts a person's speech by making them hear their own spoken words at a very slight delay

Neuroscience Prize - Craig Bennett, Abigail Baird, Michael Miller and George Wolford (USA) for demonstrating brain researchers, by using complicated instruments and simple statistics, can see meaningful brain activity anywhere - even in a dead salmon

Chemistry Prize - Johan Pettersson (Sweden and Rwanda) for solving the puzzle of why, in certain houses in the town of Anderslöv, Sweden, people's hair turned green

Literature Prize - The US Government's General Accountability Office, for issuing a report about reports about reports that recommends the preparation of a report about the report about reports about reports

Physics Prize - Joseph Keller (USA), Raymond Goldstein (USA and UK) and Patrick Warren and Robin Ball (UK), for calculating the balance of forces that shape and move the hair in a human ponytail

Fluid Dynamics Prize - Rouslan Krechetnikov (USA, Russia and Canada) and Hans Mayer (USA) for studying the dynamics of liquid-sloshing, to learn what happens when a person walks while carrying a cup of coffee

Anatomy Prize - Frans de Waal (Netherlands and USA) and Jennifer Pokorny (USA) for discovering chimpanzees can identify other chimpanzees individually from seeing photographs of their rear ends

Medicine Prize - Emmanuel Ben-Soussan and Michel Antonietti (France) for advising doctors who perform colonoscopies on how to minimize the chance their patients will explode

Watch a webcast of the 2012 Ig Nobel Prizes here and also check out some of amusing photographs from the event