New Product Idea - Security

Folks,

Before electronic security systems, before electronics, what did people do for
home security?
Squeaky floor boards and barking dogs to warn of intruders? What if you want
neither?

There is a universe of security systems that need no electronics, which I
imagine could be re-
introduced and packaged as upscale or green or whatever.

For example, imagine a cylinder, say 3 inches in diameter, that passes thru a
wall from inside
the house to out. Inside the cylinder is a propeller of sorts. In a relatively
air-tight house,
the propeller is static until a door opens, a window opens, etc. The instant a
door opens, the
propeller spins due to the draft. The larger the volume, the faster the
propeller spins.

By opening every door and window in turn, the speed of the propeller spinning
can be
calibrated: stasis - that is, slow spinning since no house is air tight. An
open door hits this
speed, that window open hits this speed...

Once this is in place, the alarm itself can be anything: wind chimes, low
whistles (or high
whistles) or even magnetized paint on the propeller and a reader that logs the
speed and (hey
wait, this is electronics!) sets off an alarm.

Electronic systems can go down or be overridden. Nothing can be done to
override a draft.
(Build an airtight shed around the window you propose to break in thru? Easier
to knock off
the neighbors house).

Here again, start with the upscale, and let it ride down to everyone.

It would take a lot of research to rediscover the full range of other alarm
systems, security
systems, but it is all out there, and free.

John

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