Re: Slightly OT: Re: science teacher needs help

:::I have the target released by energizing a solenoid
::: semidemiurge
>
>They have constructed a majority of the apparatus,
>but have been stumped (me too) as to how to solve the trigger problem.
> Rick (semidemiurge)

The fuse is an easily-torn piece of aluminum foil.

| | __
| | ____________|__|
| | v | ) solenoid
| `-o------ (|__|_
( fuse ^-- |__| |
) __ |
|_________|__| =====
| ) relay
(|__|_
|__| |
|
=====

.