MaxPlanckResearch 2/2020 – All Ears https://www.mpg.de/15899308/MPR_2020_2
Who thinks of physics or neurobiology when listening to ‘Bad Guy’’ by Billie Eilish or Beethoven’s 9th Symphony? Hearing has to do with sound, which reaches the ear in the form of waves and is finally processed by the brain. We perceive some sounds or noises as pleasant, others not. But there are many frequencies that we do not perceive at all, such as ultrasound. This is how bats locate their prey at night. Researchers use ultrasound to combine tiny particles into three-dimensional structures and create acoustic holograms that may one day be used in medicine.
Planck Institute for Evolutionary Anthropology in Leipzig, knows what happens when a virus