For the first time, scientists have shown that sound can travel through the emptiness of a vacuum. However, the rule-breaking trick requires specific circumstances and can only be carried out over ...

Sound is usually treated as the most familiar of physical phenomena, the background noise of daily life rather than a ...

Two piezoelectric solids 1, 2 are separated by a vacuum gap of width d. An incoming acoustic wave from solid 1 (positive z-axis of a laboratory coordinates xyz) with an incident angle θ i tunnels ...

Researchers have developed a new theory for observing a quantum vacuum that could lead to new insights into the behaviour of black holes. Researchers have developed a new theory for observing a ...

A research team at City University of Hong Kong (CityU) has discovered a new type of sound wave: the airborne sound wave vibrates transversely and carries both rotation and orbital angular momentum ...

Helium leaks are hard to detect, since it is odorless, colorless, tasteless, and does not react with other chemical ...

A classic movie was once promoted with the punchline: ”In space, no one can hear you scream”. Physicists Zhuoran Geng and Ilari Maasilta from the Nanoscience Center at the University of Jyväskylä, ...