Ping-Pong Ball Insulators Can Block Noise
January 1, 20242min readResearchers harness acoustics principles to seal out noise pollutionBy Rachel Berkowitz Constant city noise has been linked to long-term health problems, but it's hard to keep out of homes and businesses; low-frequency sounds such as traffic and construction propagate easily through walls and other solid materials. Expensive, specialized paneling can help, but a new study in the Journal of Applied Physics shows how everyday materials and clever physics can also do the trick, creating a kind of!-->…