Isbn: 9787530166307 - 可怕的科学(漫画版) 顽皮声波 (1 resultados)

paperback. Condición: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House We perceive the world through sound. Sometimes we hear pleasant sounds. sometimes we hear harsh sounds. Sound brings us joy. but also makes us irritable. Is there any secret to the production of sound? Scientists have long studied sound. and they found that sound is a kind of wave. By studying the amplitude. frequency. resonance and other characteristics of this wave. scientists hav.…