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

Acoustic frequency filters, which convert electrical signals into miniaturized sound waves, separate the different frequency ...

Different frequencies sound different to us. For instance, when you hum deeply, that’s about 200 Hz. The metallic sound of a ...

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

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Engineers at Switzerland’s École Polytechnique Fédérale de ...

Sound is usually something we hear, not something we touch. But researchers at Virginia Tech have found a way to turn ...

“Second sound is the hallmark of superfluidity, but in ultracold gases so far you could only see it in this faint reflection ...

Helium is a noble gas, and its colorless, odorless, and non-reactive properties make it extremely difficult to detect. A ...

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