But think of the animals and birds with their extended hearing range. Andy www.g4jnt.com On 31 August 2010 19:54, mal hamilton <[email protected]> wrote: I see 15 Kilowatt audio amplifiers advert
I see 15 Kilowatt audio amplifiers advertised, therefore there must be a speaker system, public address horns available for such amplifiers. If one of these speaker horns was directed line of sight t
Andy, Yes that is how environmentalists were able to block the Navy's use of high-powered sonar based on the damage it did to whales and dolphins. http://www.msnbc.msn.com/id/21785920/ -- 73 Warr
I see 15 Kilowatt audio amplifiers advertised, therefore there must be a speaker system, public address horns available for such amplifiers. If one of these speaker horns was directed line of sight
OK you have been to Burning Man fer sure Bob K3DJC ____________________________________________________________ 1 Tip for Losing Weight Cut down 2 lbs per week by using this 1 weird old tip http://th
Maybe because the 50Hz in the power grid is an electric (or in the best case electromagnetic) signal and our ears are sensible to acoustic signals ? 73, Rik ON7YD - OR7T
Hi Bob, Busted... if you're intent on mis-spending a youth - or a middle-age for that matter - it's definitely the way to go about it! Cheers, Steve Bob K3DJC
With all the energy concentrated into a single tone on 8.97 Kcs it could well travel a considerable distance with a few Kilowatts of audio beamed in an arranged direction, especially along a valley.
Rik, Krakatoa exploded with the equivalent force of 200 Megatons of TNT, bigger than the largest Hydrogen bomb and 13,000 times the size of the nuclear explosion that destroyed Hiroshima. Tha
All, here some real "DX": The explosion of the Krakatoa (1883) was heard in Perth (Australia), 3100 km away, and on the island of Rodrigues, 5000 km away. 73, Rik ON7YD ______________________________
With all the energy concentrated into a single tone on 8.97 Kcs it could well travel a considerable distance with a few Kilowatts of audio beamed in an arranged direction, especially along a valley
Hello All, two years ago someone disturbed my breakfast by a deeply hammering disco sound. So I took my car to search for the source. Surprisingly, the sound decreased to nearly zero when I drove som
Theoretically that is correct but the Man in a previous email said he was able to hear the rock concert audio 20 Kilometres away and that was scattered audio. He was able to hear the total audio spec
With all the energy concentrated into a single tone on 8.97 Kcs it could well travel a considerable distance with a few Kilowatts of audio beamed in an arranged direction, especially along a valley
Hi Mal, Warren, You both have points, and misapprehensions, in about even measure. In still, homogeneous air, the results are as Warren states. They did after all measure all this stuff once upon a t
