MinuteEarth

To learn more about this topic, start your googling with these keywords: frequency - how often a wave occurs in a certain unit of time Hertz - a unit of frequency (Hz), the number of waves that occus in a second pitch - a perceptual property of sounds that allows their ordering on a frequency-related scale echolocation - the location of objects by reflected sound refraction - the change in direction of a wave diffraction - the bending of waves around obstacles and the spreading out of waves beyond openings MinuteEarth is produced by Neptune Studios LLC ⁠⁠⁠⁠⁠⁠⁠⁠⁠https://neptunestudios.info⁠⁠⁠⁠⁠⁠⁠⁠⁠ If you like what we do, you can help us! - Become our patron: ⁠⁠⁠⁠⁠⁠⁠⁠⁠https://patreon.com/MinuteEarth⁠⁠⁠⁠⁠⁠⁠⁠⁠   - Buy our merch: ⁠⁠⁠⁠⁠⁠⁠⁠⁠http://dftba.com/minuteearth⁠⁠⁠⁠⁠⁠⁠⁠⁠   - Buy our book: ⁠⁠⁠⁠⁠⁠⁠⁠⁠https://minuteearth.com/books⁠⁠⁠⁠⁠⁠⁠⁠⁠ - Sign up to our newsletter: ⁠⁠⁠⁠⁠⁠⁠⁠⁠http://news.minuteearth.com⁠⁠⁠⁠⁠⁠⁠⁠⁠   - Share with your friends and family - Leave us a comment (we read th