Cold Servings

by David L. Burkhead

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Tech Note

A Cold Servings Extra

Glove Switches

The main character uses switches in his gloves to activate equipment, although at the moment he only has a couple of devices.  The problem with switches in the gloves is being able to trigger them when desired, but not have them go off by accident at other times.

One possible solution is to have multiple switches that have to be pressed in proper combinations to trigger the equipment.  In this case, there are two switches, one is a magnetic switch on the finger (in this case a solid state "Hall effect" sensor) that's triggered by a strip of magnetic material across the upper part of the palm.  By itself it does nothing but when combined with activation of a pressure switch in the heel of the hand it triggers the device.

So, if he makes a fist, the Hall switch may be close enough to the magnet to trigger, but the pressure switch is unconnected.  If he grabs something, the pressure switch may be pushed, but the fingers aren't near the magnet so the Hall switches aren't triggered.  Only when he folds the finger down close to the palm and push on the pressure switch does the device trigger.

Panel two shows this.  He folds one finger under the baton to bring the Hall switch close to the magnet and simultaneously push the pressure switch.

Flash Unit

Behind the visor of the helmet is a shutter.  When triggered, it closes off vision for a split-second.  The closing of the shutter sets off a secondary trigger.  A powerful flash unit emits a bright burst of light.  The goal is to temporarily blind others while protecting the main character's vision.

For the main character the result is similar to a slightly longer than normal blink.  For everyone around him, the effect is like several bright photo flashes going off simultaneously.

 

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