A study on how to relieve jetlag in hamsters won one of the prizes
Other winners included work on treating hamster jetlag with impotency drugs, extracting vanilla from cow dung, and the side-effects of sword swallowing.
The awards, founded in 1991, mark achievements that "first make people laugh, and then make them think".
The prize ceremony took place at Harvard University, US.
Genuine Nobel Laureates handed out the much-coveted awards to the winners, who took away no cash, but instead received a hand-made prize, a certificate, and, of course, the glory of such an illustrious win.
Sword effects
Dan Meyer, executive director of Sword Swallowing Association International and an author of the British Medical Journal paper Sword Swallowing and its Side-Effects, said: "I was surprised and extremely honoured when I found out I was not only nominated for an Ig Nobel prize but that I had won it. I couldn't believe it."
He told the BBC News website that the study revealed that when professional sword swallowers ingested a single sword very carefully, it did not do much harm, but swallowing many swords, strangely shaped blades, or being distracted when swallowing, could cause injury.
The findings also suggested that sword swallowers should not swallow swords if they already had a sore throat, he said.
Unfortunately, said the organisers, nobody from the US military who carried out the research on chemicals that could prompt homosexual dalliances amongst rival troops (a research project called Harassing, Annoying and "Bad Guy" Identifying Chemicals) attended the ceremony because the study's authors could not be tracked down.
Real research
The Ig Nobel Prizes were created by the Annals of Improbable Research (AIR), a science magazine.
The Ig Nobels celebrate the unusual side of research
The awards, now in their 17th year, are intended to "celebrate the unusual, honour the imaginative - and spur people's interest in science, medicine and technology".
Marc Abrahams, the editor of AIR, told the BBC News website: "When I became the editor of a science magazine, suddenly I was meeting all kinds of people who had done things that were hard to describe, and for the most part, nobody had ever heard of.
"For some of them, it seemed a great shame that nobody would give them any kind of recognition, and that was what really led to the birth of the Ig Nobels."
Like their more sober counterpart, the Nobel Prizes, the Ig Nobels are split into several categories and all research is real and published.
2007 Ig Nobel Winners
Medicine - Brian Witcombe, of Gloucestershire Royal NHS Foundation Trust, UK, and Dan Meyer for their probing work on the health consequences of swallowing a sword.
Physics - A US-Chile team who ironed out the problem of how sheets become wrinkled.
Biology - Dr Johanna van Bronswijk of the Netherlands for carrying out a creepy crawly census of all of the mites, insects, spiders, ferns and fungi that share our beds.
Chemistry - Mayu Yamamoto, from Japan, for developing a method to extract vanilla fragrance and flavouring from cow dung.
Linguistics - A University of Barcelona team for showing that rats are unable to tell the difference between a person speaking Japanese backwards and somebody speaking Dutch backwards.
Literature - Glenda Browne of Blue Mountains, Australia, for her study of the word "the", and how it can flummox those trying to put things into alphabetical order.
Peace - The US Air Force Wright Laboratory for instigating research and development on a chemical weapon that would provoke widespread homosexual behaviour among enemy troops.
Nutrition - Brian Wansink of Cornell University for investigating the limits of human appetite by feeding volunteers a self-refilling, "bottomless" bowl of soup.
Economics - Kuo Cheng Hsieh of Taiwan for patenting a device that can catch bank robbers by dropping a net over them.
Aviation - A National University of Quilmes, Argentina, team for discovering that impotency drugs can help hamsters to recover from jet lag.
Le prix '''Ig Nobel 2007''' en aviation a été attribué à une équipe de recherche argentine, qui a découvert que les médicaments contre l'impuissance aident à récupérer du décalage horaire chez les hamsters.
Les lauréats des '''Prix Ig Nobel''' 2007 ont été annoncés. Les prix, remis à chaque début d'octobre depuis 1991 par la revue humoristique ''Annals of Improbable Research'', sont une parodie des prix Nobel, qui récompensent plusieurs champs disciplinaires. Les récompenses sont remises aux résultats qui . Ils sont présentés au Sanders Theater de l'Université de Harvard.
Dix prix ont été présentés, chacun attribués à un domaine différent. Les lauréats sont :
* en '''médecine''' : Brian Witcombe, du Gloucestershire Royal NHS Foundation Trust (Royaume-Uni) et Dan Meyer, qui ont étudié les conséquences sur la santé de l'avalage de sabre.
* en '''physique''' : une équipe américano-chilienne, qui a produit une étude sur comment les draps de tissus se froissent.
* en '''biologie''' : le Dr Johanna van Bronswijk des Pays-Bas, qui a mené un recensement des animaux vivant dans les lits des gens.
* en '''chimie''' : Mayu Yamamoto, du Japon, pour avoir mis au point une méthode d'extraction de la fragrance et de la poudre de vanilline des bouses de vaches.
* en '''linguistique''' : une équipe de l'Université de Barcelone, qui a découvert que les rats ne peuvent pas faire la différence entre le japonais et le hollandais quand ils sont parlés derrière eux.
* en '''littérature''' : Glenda Browne de Blue Mountains, Australie, pour son étude sur comme le mot ''the'' crée la confusion chez les gens qui essaient de ranger les choses en ordre alphabétique.
* '''paix''' : l'US Air Force Wright Laboratory pour avoir tenté de développer une  qui aurait rendu les soldats ennemis homosexuels.
* en '''nutrition''' : Brian Wansink de l'Université de Cornell pour son étude des limites de l'appétit humain, en utilisant un bol de soupe auto-remplissant .
* en '''économie''' : Kuo Cheng Hsieh de Taïwan, pour avoir breveté une machine qui capture les pilleurs de banques en leur jetant un filet dessus.
* en '''aviation''' : à une équipe de recherche argentine de l'Université nationale de Quilmes (Argentine), qui a découvert que les médicaments contre l'impuissance aident les hamsters à récupérer du décalage horaire.