Pingpong balls score big as sound absorbers
From American Institute of Physics 25/10/23 Long-term exposure to low-frequency noise can cause numerous health problems, but the solution may be found in an unexpected object, a pingpong ball. Conventionally thought of as the hollow plastic balls that speed through the air during a fast-tempo game of table tennis, with a few modifications, pingpong balls […]
First evidence that albatrosses use infrasound to navigate long journeys
From University of Liverpool 18/10/23 A new study by the University of Liverpool provides the first evidence that wandering albatrosses, one of the widest-ranging seabirds, may use infrasound to help them navigate long and featureless foraging trips covering thousands of miles. In a paper published in the journal Proceedings of the National Academy of Sciences […]