Hard drive magnets for sticky traffic lights

[Robert Haston]

Since traffic light trippers are all magnets, I figure the
strength per ounce per dollar is what we are looking for.
The neodymium magnets you can get out of old hard drives are
as strong as they come.

As to complaining to your local DOT, I have seen the effect
of sensors set too sensitive. Drivers turning right trip the
adjacent left turn lane light and switch the intersection.

--
Robert Haston Satellite Beach, FL

[Doug Huffman]

False. They're usually resonant circuits. When that is not
true then they are old fashioned pressure switches.

"Robert Haston" <rehaston@earthlink.net> wrote in message
news:lDdGc.2523$sD4.483@newsread3.news.atl.earthlink.net...
| Since traffic light trippers are all magnets, I figure the
| strength per ounce per dollar is what we are looking for.
| The neodymium magnets you
can
| get out of old hard drives are as strong as they come.
|
| As to complaining to your local DOT, I have seen the
| effect of sensors set too sensitive. Drivers turning right
| trip the adjacent left turn lane
light
| and switch the intersection.
|
| --
| Robert Haston Satellite Beach, FL
|
|

[Robert Haston]

So the car acts like an iron core increasing the flux?

So my guess is all the devices sold (magnets as far as I can
tell) don't really work.

"Doug Huffman" <doug.huffman@comcast.net> wrote in message
news:tbOdnaeBN6VzSnTdRVn-iQ@comcast.com...
> False. They're usually resonant circuits. When that is not
> true then
they
> are old fashioned pressure switches.
>
>
> "Robert Haston" <rehaston@earthlink.net> wrote in
> message news:lDdGc.2523$sD4.483@newsread3.news.atl.eart-
> hlink.net...
> | Since traffic light trippers are all magnets, I figure
> | the strength per ounce per dollar is what we are looking
> | for. The neodymium magnets you
> can
> | get out of old hard drives are as strong as they come.
> |
> | As to complaining to your local DOT, I have seen the
> | effect of sensors
set
> | too sensitive. Drivers turning right trip the adjacent
> | left turn lane
> light
> | and switch the intersection.
> |
> | --
> | Robert Haston Satellite Beach, FL
> |
> |