Waited for it ...
And when Wired was referenced ... grabbed my coat!
227 publicly visible posts • joined 21 Jan 2017
Bought a Drill Doctor to take care of that problem ... and always keep a copy of the Machinery's Handbook close at hand ....
Lived in shame that my degree was in Electrical Engineering and employed title was Electronics Engineer ...
Preferred title is Research and Development Scientist/Engineer ...
Russell Johnson without the coconuts and bamboo ...
Already running POE security camera wires on utility pole ....
hereby declare that as a local provider, will now cross the street ....
As a child, a favorite tool was lineman's pliers - Klein guy @joint - have project and ladder, will climb ... .
The rest was a rant about the FCC, Report and Order (ET Docket No. 15-26), and a play to be kicked out of the band entirely ....
http://www.arrl.org/news/amateur-radio-poised-to-retain-full-76-81-ghz-band-sharing-with-vehicular-radars
Guess no one has had a copy of "The Big Brother Game" by Scott French, August 1976 [didn't someone reference Wishbone Ash and then old]
Thought it had to do with the ear being non-linear not the air - Fastl H., Zwicker E. (2007) The Ear’s Own Nonlinear Distortion. In: Psychoacoustics. Springer, Berlin, Heidelberg
Interesting to see that the Japanese thought the technology infeasible in the 1980's
So on the wiki, along with a bit of confusion about the value of the entry ....
Sound from ultrasound - Parametric array
Since the early 1960s, researchers have been experimenting with creating directive low-frequency sound from nonlinear interaction of an aimed beam of ultrasound waves produced by a parametric array using heterodyning.
Ultrasound has much shorter wavelengths than audible sound, so that it propagates in a much narrower beam than any normal loudspeaker system using audio frequencies. Most of the work was performed in liquids (for underwater sound use).
The first modern device for air acoustic use was created in 1998,[1] and is now known by the trademark name "Audio Spotlight", a term first coined in 1983 by the Japanese researchers[2] who abandoned the technology as infeasible in the mid-1980s.
A transducer can be made to project a narrow beam of modulated ultrasound that is powerful enough, at 100 to 110 dBSPL, to substantially change the speed of sound in the air that it passes through.
The air within the beam behaves nonlinearly and extracts the modulation signal from the ultrasound, resulting in sound that can be heard only along the path of the beam, or that appears to radiate from any surface that the beam strikes.
This technology allows a beam of sound to be projected over a long distance to be heard only in a small well-defined area;[citation needed] a listener outside the beam hears nothing.
This effect cannot be achieved with conventional loudspeakers, because sound at audible frequencies cannot be focused into such a narrow beam.[citation needed]
Is the one-way transfer of information to China ...
"The use of mergers, acquisitions, and partnerships with foreign companies, universities, and research centres in order to acquire local identities that enhance influence activities; and potentially, access to military technology, commercial secrets, and other strategic information."
https://www.wilsoncenter.org/sites/default/files/for_website_magicweaponsanne-mariesbradyseptember2017.pdf
But saw Ackerman on the telly tonight, so can't be the really good stuff ...
"Aphelion Orbitals design uses a simple QAM-16 modulation scheme to make it easier to correct atmospheric distortion in the signal."
As for AO, that one sentence explains all of their FSO expertise.
Been told drinking causes brain damage, or did I remember that wrong ...
All those promises for the Great Bowl of China ....
not spherical, frequency limited, and full aperture unavailable ... so make it a tourist site ...
Yeah, yeah, sure, engineers ....
"The entire county town stinks of this gas after nightfall, and there are some plainclothes people going around getting people out of their homes and beating them up," he said. "I think they're hired by the factory."
"http://www.rfa.org/english/news/china/leak-04142015103014.html
Maybe that explains what I saw in 1969 - a 747, flying at altitude, heading off the Washington State coast with an instrumentation boom and contrails.
Fun times in Seattle for a newcomer ... 75% jobs lost in Boeing's commercial aircraft business ... wasn't too good back home at Motorola either ...
Boom and bust ... churn and burn ... tech business for you ... don't tell the kids ...
Re-calibrated the elReg translator to American English - indicated a reference to software bug appendages
Sources say that both of these forms - antennas/antennae - are used in Australia
Spanish translator comes in with antenas
Honored to up-vote both John Cleese and Socrates in the same post!
So before reading me my rights,
plod asks why do you think you can do that [response to flying 8 blade weedeater above me in blind corner of property at height lower than adjacent 1 floor building],
I say "Uhh .... Internet"
Get read rights, then request lawyer present, plod says we need to talk to "victim" first.
No arrest, case disappears from plod incident online files,
My alleged crime - TELLING pendejo if he flies that thing over me again, I will knock it down ... method ... rubber bands!!!