🚀 go-pugleaf

I found your post on diffration grating interesting.  Its not a bad idea, and I
thought I'd take some time to comment.  The principles behind the technology
seem sound.  Its great for airplanes.  No echo, no see,  and you are
essentially invisible.  Traffic radar is a different story.  Lets look at the
principles behind each for the reason.

     I think you will agree that in principle the beam of a scanning radar
system looks at only one spot at a time.  It measures the amount of time it
takes for a signal to reach the target and return.  Traffic radar illuminates
the road with a wide beam, and monitors the frequency shift due to the doppler
effect of the returned signal.

     The fundamental difference is that traffic radar dosent care from where
the signal came.  Position radar does.  The effect is that smokey will get some
reflected energy from the car, that which bounces off of some other reflective
object.  The absence of a direct reflection does not prevent detection.  It
does severely decrease the range in certain situations.  The vehicle does not
have nearly as high a radar profile as it did before.

     The ultimate trick would be to absorb, not reflect the microwaves.  It is
a well known fact that this is possible, but again it is difficult.  Water
absorbs certain frequencies of microwaves, and this principle is used in the
microwave oven.  All you need to do is to find the appropriate molecule and
paint it on the inside of your fiberglass body.  Good luck.


-il01 @andrew.cmu.edu                                     -Ihor Lys