Heat is not supposed to behave like this. In everyday life, warmth seeps and diffuses, spreading from hot to cold in a slow, smearing process that never looks anything like a crisp sound wave. Yet ...

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

Gibbons effortlessly use the same techniques as professional opera singers when calling out to other animals, scientists found by listening to the squeaky songs of one of the apes on helium. The ...

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.

Submarines are pretty cool bits of kit. They can offer researchers an unrivaled view of the ocean floor, help search out missing wrecks beneath the waves and can even ferry about the rich and famous, ...

The key insight behind the device is that sound travels at different speeds in different gases. In helium, sound moves much ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Researchers working with a type of super-cooled helium have made the frigid stuff whistle, an ...

Your birthday party isn’t complete without the helium-induced squeak, but what does physics say? Discover how people think it works, how it really works, and many, many ways to get hurt while ...

It’s now well-established that bats can develop a mental picture of their environment using echolocation. But we’re still figuring out what that means—how bats take the echoes of their own ...