Sixth you need to thread the string between the top and bottom of sticks.
Goal:to build a model ballista
What you need:10 craft,craft,sticks,string, tape,hot glue gun.
First cut one stick in half.
Second hot glue the half sticks to two full sticks.
To make a rectangle.
After that add another two the back that run parallel
Into the front full sticks.
Next glue a stick off the middle that perpendicular to the
Frame ¾ of the sticks are on that side.
After that you need to cut two pieces of string that are over the
Width of the frame.
Sixth you need to thread the string between the top and bottom of sticks.
loop them around twice.
Next insert two sticks and twist the string tight the sticks need to flick when
pulled forward.
Second to last glue to sticks along the center stick to make an aroow holder.
Finally make an arow and test your ballista.
There is potential energy: this is in the twisted strings and then
the sticks and then the firering string then the missle.
