wiz@xroads.UUCP (Mike Carter) (02/19/89)
There's been some talk about Laser Speeding traps. Detectors for Radar give the user enough time (normally) to react and slow down. The Army uses similiar equipment in their tanks (LRS- Laser Rangefinding Sys) and believe me, it's *very* accurate, besides being atroshiously quick and has a range of over 2 miles. There's one catch; The circuitry involved with laser "doppler" requires a reflective video signal. The circuitry uses the time and signal strength as an effective judgement of range. The rate of range change per division of time gives the effective speed. Now...for all of you deviant rocket sled drivers, a very effective way to thwart such measurements against your shiny capsule of velocity is to employ a simple device. A 7-foot free-spinning chrome-plated windmill blade mounted directly in front of the car would definiately give the receiving circuits a seizure. Failing that, I suggest either spending lotsa $$$ making a super-fast Laser Beam detector and hook that into a "warm" modulated laser gun and bounce the Kaper Kops some weird beams....or SLOW DOWN. [:o- Of course, imprinting a holographic image of Donald Duck all over the front of your vehicle would probably give the cops something to laugh at through their "scope". -Mike -- ============================================================================= = Mike Carter N7GYX, Phoenix AZ| Q: Why did the Chicken cross the road ? = = hplabs!hp-sdd!crash!xroads!wiz| A: To ESCape the Main Menu . = =============================================================================
jlh@loral.UUCP (Physically Phffft) (02/21/89)
In article <573@xroads.UUCP> wiz@xroads.UUCP (Mike Carter) writes:
=Now...for all of you deviant rocket sled drivers,
=a very effective way to thwart such measurements against your shiny
=capsule of velocity is to employ a simple device.
=A 7-foot free-spinning chrome-plated windmill blade mounted directly
=in front of the car would definiately give the receiving circuits a
=seizure.
Yep, I can see it now. All us rocket pilots with heavy duty versions of
kids little pinwheel doohickys mounted all over the front end of a car.
Legislators claiming pinwheels are a hazard to ordinary citizens and trying
to ban sale and possesion of them. The NPA (national pinwheel assotiation)
claiming thats unconstitutional, then disbanding when it's pointed out that
nowhere in the constitution does it say the right to keep and bear pinwheels
shall not be abridged. Polititions, in an attempt to avoid pissing off
anyone, try to ban "assault pinwheels", then get tangled up in their
underwear trying to define one. Newspaper editors claim pinwheels with more
than 3 blades, or that have blades with a more than 20 degree angle have
no use in a speed-limit-abiding society. Dan Rather gets into an on-air
argument with Mr Rogers over banning pinwheels with quick-change blades.
Meanwhile, all us !law-abiding rocket pilots simply invent some other
device to foil laser speed traps, not because we feel we need them, but
we enjoy the spectacle of uninformed zealots who are convinced they're right
making fools out of themselves.
=Failing that, I suggest either spending lotsa $$$ making a
=super-fast Laser Beam detector and hook that into a "warm" modulated
=laser gun and bounce the Kaper Kops some weird beams....or
=
=SLOW DOWN. [:o-
HAHAHAHAHAHAHAHAHAHAHA You're kidding, right?
Actually, I think I'd be kind of worried about the owners potential liability
over shining laser beams all over the place. Those things can be dangerous,
and if they ain't, some lawyer somewhere will file a lawsuit anyway. Unless
you live in LA, there's a big difference between a battleground and a
freeway.
This doesn't have much to do with electronics, but I couldn't resist and
I don't dare stick this in rec.humor or alt.flame. Sorry. Also, my
dictionary is in the office so my spelling sucks.
Jim
"Life begins at 85"
--
Jim Harkins jlh@loral.cts.com
Loral Instrumentation, San Diegokoontz@oregon (02/22/89)
California had some problems a few years ago with people illuminating vehicles with lasers. Wasn't there a ban in CA on illuminating cars?