Forry, wrong number! II
Fun links from "A Moment of Science"
page features links to several pages from the "A
Moment of Science" site, each of which can serve as an independent
study unit; so you may want to visit just one link first, then come back to
the others, one at a time, when it's convenient for you. The links are gathered
together in this one page for convenience, not because you should expect to
get through everything in one sitting! And you don't need to finish
all of these before going on to the next page. But do at least try the first
do we often mishear words on the telephone, e.g. sick for thick,
or Terry for Carrie? Below follow text and audio links to an
explanation of this phenomenon, entitled "Forry, Wrong Number":
The frequency range of a human voice depends of course on sex and age, among other things. The average frequency of a male voice is around 120Hz; for females it's 235; and for children it's around 265. During puberty, the voices of both sexes go through changes, though these are of course much greater in boys than in girls. This page, entitled "When a Boy's Voice Changes", explains this process:
Another thing besides puberty that affects the pitch of our voice is illness. Our voice sounds different when we have a cold. Here is an explanation:
Remember the first time you heard yourself on tape? You probably didn't think you sounded like "you". Follow the links to learn about bone conduction, and one reason why we don't like to hear ourselves on tape:
Maybe your computer sounds more like you than you do!
Ever play with a tin can phone when you were a kid?
Music, wavelength, and becoming part of the music:
Hearing sounds underwater:
The acoustics of laughter:
Reading, dyslexia, and phonological awareness:
Jumping at a bag being popped:
An interesting take on resonance The sexiest frog in Borneo:
An animal that "talks" with his ears:
Do chickens have language?
Hearing test for moths:
Whew! That was a lot of information on sounds and hearing. The next page will be shorter. You've certainly heard of 'white noise'. But did you know that there is also something called 'pink noise'? It gets even worse! Read on!
Next: White noise, pink noise...orange noise???