To calculate all the breaths you take in a lifetime we have to know a couple of things. First of all we have to know the size (volume) of an average breath. Secondly we have to know how frequent we breathe (number of breaths per minute).And finally we have to decide how long you are going to live.o calculate all the breaths you take in a lifetime we have to know a couple of things. First of all we have to know the size (volume) of an average breath. Secondly we have to know how frequent we breathe (number of breaths per minute). And finally we have to decide how long you are going to live.
Step #1: Make the slingshot. 1  Make elastic bands. 2  To begin, tie 2 rubber bands together to make a long band. 3  Make a pocket. 4  Cut a small rectangle out of a scrap of leather or sturdy cloth. 5  Assemble. 6  Tie the rubber bands to the ends of a forked stick.
Hereâs how you do it: 1  Bore sight your rifle to get on the paper. 2  Using whatever means available (sand bags, for example), steady the rifle so that it is rock solid with the scope aimed dead center on the target. 3  Fire one shot at the target. If the rifle moved with recoil, reposition the rifle so that the scope is once again aiming dead center on the target. Without moving the rifle, adjust your scopeâs windage and elevation (walk the sight) until it is aiming dead center in the hole the shot made in the target.