Koichiro Mizoguchi and Junichi Murakami of Japan demonstrate one application of their research by spraying a plate of sushi with aerosolized wasabi at this year’s Ig Nobel Prize Ceremony in Harvard’s Sanders Theatre last night. Mizoguchi and Murakami were awarded the Ig Nobel in chemistry for “determining the ideal density of airborne wasabi (pungent horseradish) to awaken sleeping people in case of a fire or other emergency, and for applying this knowledge to invent the wasabi alarm.”