The Hum by Colgate has an excellent smart app that guides your brushing. Unlike many other electric toothbrushes, the Hum vibrates rather than rotates, providing a different, more gentle experience.

Of all the birds on this planet, hummingbirds are one of the most unique and, dare I say, charming. Even if you live in an area with hummingbirds, actually seeing one can still be an extremely rare ...

The Earth hums, and scientists have for the first time recorded the sound in the ocean. Using seismometers in the Indian Ocean, researchers picked up on the sound that is way, way too low for mere ...

Earth constantly vibrates with a low-frequency "hum," imperceptible to humans, generated primarily by ocean waves interacting ...

Astronomers are trying to listen to the universe's background hum — a cascade of gravitational waves believed to exist since the first rapid inflation of space following the Big Bang over 13.8 billion ...

Voyager 1, which is the farthest human-made object from Earth and the first to enter interstellar space, has been detecting a "faint, persistent hum" that scientists have attributed to interstellar ...

One of our favorite electric toothbrushes has plummeted in price thanks to Amazon Prime Day - now just over $20. When you purchase through links on our site, we may earn an affiliate commission.