Khoa học & phát minh
A tube made of sound carries water through the air
On October 20, 2026, the University of Helsinki shared news of a tube made of sound from 256 small speakers.
Scientists in Finland made a tube out of sound. Water can flow through it in the air. The tube has no walls of glass or plastic. The University of Helsinki shared the news on October 20, 2026.
Sound travels through the air in waves. These waves can hold and move small things. In the new machine, 256 small speakers sit in a ring. Their sound holds a thin stream of water in the middle. The sound is too high for people to hear.
Từ vựng trong bài
streamdanh từ
Dòng chảy mảnh: một dòng nước hay chất lỏng khác, nhỏ và mảnh, chảy liên tục.
Their sound holds a thin stream of water in the middle.