Rafed English

Did You Know? - Sound

  • Did you know if you try to say the alphabet without moving your lips or tongue every letter will sound the same
  • Did you know white cats with blue eyes are usually deaf
  • Did you know wind doesn’t make a sound until it blows against an object
  • Did you know there is no sound in space
  • Did you know sound travels 3 times faster through water than in air
  • Did you know to crack a whip the tip must be travelling faster than the speed of sound
  • Did you know dolphins can hear underwater sounds from 24km (15miles) away
  • Did you know most cows produce more milk when they listen to music
  • Did you know elephants communicate in sound waves below the frequency that humans can hear
  • Did you know sound travels 15 times faster through steel than air
  • Did you know a cat can keep purring while inhaling and exhaling
  • Did you know a whip makes a cracking sound because its tip moves faster than the speed of sound
  • Did you know sound travels 10 times faster through granite than air
  • Did you know dolphin's can detect underwater sounds from 24 km (15 miles) away
  • Did you know when baby polar bear cubs are born they cannot see or hear for their first month
  • Did you know akousticophobia is the fear of noises
  • Did you know melophobia is the fear of music
  • Did you know lion's can't roar until the age of 2

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