The Ig Nobel Prizes honor achievements that make people LAUGH, then THINK.
In the Ig Informal Lectures, some days after the ceremony, the new Ig Nobel Prize winners attempt to explain what they did, and why they did it. We are releasing these lectures one at a time.
The 2021 Ig Nobel for Kinetics was awarded to Hisashi Murakami, Claudio Feliciani, Yuta Nishiyama, and Katsuhiro Nishinari, for conducting experiments to learn why pedestrians do sometimes collide with other pedestrians.
REFERENCE: “Mutual Anticipation Can Contribute to Self-Organization in Human Crowds,” Hisashi Murakami, Claudio Feliciani, Yuta Nishiyama, and Katsuhiro Nishinari, Science Advances, vol. 7, no. 12, 2021, p. eabe7758.