+1 - that's exactly how to carry out that experiment, well...except for the gaffer tape.  Karyn's kind of gaff-"happy."

You can never have enough gaffer tape.

Karyn makes me proud.

I dunno why, she just does.

All I'm going to say on the subject is that gaffer tape really pulls out the hair.

Julibee, it's not so much that there's nothing to learn in the Coffee House as much as the fact that sometimes, we learn a little too much.

MNorman


Just to complete this, 20 micropascals = .0002 micro bars = about 2.9 billionths of a psi

This reminds me of Queen and Bowie.
 
(Oh yeah, and I also have that Radio Shaft SPL meter - works great!)

Karyn
...
The important part to note (to impress teacher) is that the decibel unit is a comparative measure, NOT an absolute.  The decibel will tell you how much louder or quieter one sound is when compaired to another, it will NOT tell you the precise volume of a sound (although you could work that out)
...

Still, one must remember that the particular measurement is "relative" to its environment, and from that one could say/conceive that the particular sound is around this or that level. 

A horse went in a bar, the bartender asked; "Why the long face?"...while others were concerned about the opposite end.
...I think that was around 6 years ago...for what it's worth.

               oooooohhhhhhh I love to hear a good horse joke as much as the next Pony ...
The thing is when it comes to horse jokes ,  why did the horse walk in the Saloon in the first place ?
Bars and Saloons an be very dangerous places for a horse unless they are carrying a Colt ( hey I made a funny )
Also when it comes to these horse walking into a Bar jokes, Why does the horse when he finally makes it inside the Saloon always get a total a$$hole for a bartender asking him the same old tired cliche of a question ?
                                                       "why the  long face "? 
 
             
 
When was the last time you had to spend weeks at a time on a hot and dusty trail with a cowboy sitting on your back ?
Most of the time these cowboys don't even know what a bar of soap looks or smells like when they are out on the trail .
Oh boy , did I happen to mention that after a few days of trail life these cowboy guys really start to smell ....
They all eat beans , drink coffee and sleep next to the campfire with all their cloths on ..
Then when they wake up in the morning they go to take a poop on the side of the trail and they don't even use toilet paper ...
Once we saddle up and get back on the trail , my day turns into an eternity of having to chug along all day long with out so much as a complaint out of me "Your faithful horse "
I sometimes have days where there is a lot of action going on ..I'm being chased by Indians , Stage coach robbers and getting shot at ..those day go by fast and if nobody gets hurt ...they are a lot of fun....
On the boring days where there is not much going on , the hours seem to last forever while I have to listen to the cowboy fart all day long while chewing tobacco and spiting it right past my head  ...shhhheesssh ..
 
I guarantee that all the A hole Bartenders in all these horse jokes would stop asking the stupid question of "why the long face " if he had the ability to walk a mile in my horseshoes 
 
When a horse walks into a bar all he want's is one thing ..to get so drunk he can forget his troubles and end up like this guy for a few hours 
            
             Drunk and soundly asleep in a field with out a care in the world .
 
Kenny