When you speak or shout or sing or even whisper, the vibrations of your voice send sound waves through the air.
These sound waves travel out from your mouth in all directions, out straight, to the right, to the left, and to all the places in between.
But when you cup your hands around your mouth, you are pointing the sound waves in only one direction and keeping them from spreading out in all the others.
By doing this, you are giving your sound waves more energy and making them louder and stronger.
Related Posts
-
Where Did the Phrase “Cup of Joe” Originate and Why Is a Cup of Coffee Called a “Cup of Joe”?
Up until 1913, the United States Navy practised the British tradition of each sailor receiving a daily ration of rum. But that year, Secretary Joseph, or Joe, Daniels, a non-drinker, prohibited any alcohol…
-
How Much Cleaner Is a Dog’s Mouth Than a Human’s Mouth and Is a Cat’s Mouth Dirty?
Whether it's a dog, cat, human or cow mouth, they are all probably pretty similar in terms of cleanliness or dirtiness. It's certain that there's not a whole lot of difference as far…
-
Where does the term “stirrup cup” come from and What does stirrup cup mean?
The Anglo-Saxon word which has become stirrup was stigrap, and if this were to be literally translated into modern English, it would become "sty-rope" or "climbing-rope." The Anglo-Saxon word is composed of the…
-
Does a smaller cup of tea have less Caffeine than a bigger cup if I used the same teabag?
Caffeine is very soluble in water; as much as 150 grams of caffeine could dissolve in a cup of boiling-hot water. But there isn't anywhere near that much caffeine in a tea bag.…
-
Why do some people call themselves Hispanic while others call themselves Latino and What is the difference?
"Don't call me High-Spanic", proclaims a web site run by a person of Latin American descent. For many who share that ethnicity, the only acceptable term is Latino (for men) or Latina (for…
-
How Far Away From Jupiter Do the Moons Orbit and How Many Different Groups Of Moons Orbit Jupiter?
Jupiter's sixteen known moons travel in three distinct groups. The first, including the four Galilean moons, ranges from 77,000 miles (124,000 km) to over 600,000 miles (960,000 km). The next group orbits from…
