barakn
22nd March 2008 - 06:51 AM
QUOTE (soundhertz+Mar 21 2008, 04:05 AM)
Cell-phone freqs can generate beat frequencies orders of magnitude lower, and beat frequencies can be relatively strident; it's an interesting thought. In narrow bands specific to the bees, high amplitude of beat frequencies may not be required. I really don't hold to this but it's curious.
I hadn't thought about beat frequencies, although its obvious because cell phones use a large number of channels at similar frequency. Not sure if the amplitude would be significant.
soundhertz
24th March 2008 - 04:42 PM
A good test is to just take a synthesizer, play a note say at A440, and simultaneously play it's G sharp or B flat neighbor along with it, have this hooked up to a nice big woofer, and hear those low beat freqs generated. Add some modulation, play with the envelope, and you can really get them singing. Sound is sound: what happens mathematically relatively 'down low' also happens 'high up'.
NYAP1019
25th March 2008 - 03:39 AM
i dont know much about microwaves and harmonics, but i live in detroit michigan, and when i was younger, we used to have tons and tons of regular old honey bees. this was about 20-25 years ago. and to be honest, i havent seen a regular honey bee in the "wild" (other than at stair fairs type of thing) in a very long time. all i have seen in the last 10-13 yrs is those pain in the butt yellow jackets. makes you really wonder what is really going on.
TheDoc
25th March 2008 - 03:40 AM
QUOTE (NYAP1019+Mar 25 2008, 03:39 AM)
i dont know much about microwaves and harmonics, but i live in detroit michigan, and when i was younger, we used to have tons and tons of regular old honey bees. this was about 20-25 years ago. and to be honest, i havent seen a regular honey bee in the "wild" (other than at stair fairs type of thing) in a very long time. all i have seen in the last 10-13 yrs is those pain in the butt yellow jackets. makes you really wonder what is really going on.
Maybe they really
are escaping through the hole in the Ozone layer
deadbeat
25th March 2008 - 02:08 PM
There is also the ongoing battle against the Africanized Honeybees. Perhaps the fight to exterminate and prevent the spread of those has been hurting normal native bee populations.
It need not be some fantastic technological freak side effect. Often we fail to see the forest because of the trees.
Sapo
25th March 2008 - 02:14 PM
It isn't just bees leaving. There used to be Cuckoos in town, and north of the 'burbs there were hills that belonged to the Turkey Vultures. In Spring and Fall there were thousands of them in great gyres, riding the thermals near sundown. They are gone, too.
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