NEW YORK, United States (AFP) — A nutritional analysis of cannibalism and treating kidney stones on rollercoasters were research projects honoured by tongue-in-cheek awards at Harvard University Thursday, designed to make you laugh first, and think later.

The prize? A fake ten-trillion-dollar bill from Zimbabwe and the opportunity to give a 60-second acceptance speech before being timed out by an eight-year-old girl saying, “Please stop. I’m bored.”

The Ig Nobel Prizes, or so-called “anti-Nobels”, are organised by the satirical scientific journal “Annals of Improbable Research” and honour the same 10 categories as the real Nobels, the most prestigious awards in the world.

This year, the Ig Nobel Prize for Medicine went to two American researchers for a study published in October 2016 on the effects of using roller coaster rides to try and hasten the passage of kidney stones, according to the organisers’ press release.

The nutrition prize went to researchers in Britain, Tanzania and Zimbabwe for calculating that the calorie intake from a human cannibalism diet was significantly lower than from “most other traditional meat diets”.

A paper on chimpanzees imitating humans about as often, and about as well as vice versa conducted by researchers from seven European countries and Indonesia won the prize for anthropology at the 28th annual ceremony.

The prize for biology went to those who demonstrated that wine experts can identify, by smell, the presence of a single fly in a glass of wine — a joint effort by academics in Colombia, Germany, France, Sweden, and Switzerland.

The peace prize was won by those who measured the frequency, motivation and effects of shouting and cursing while driving an automobile.