Introduction: How to Make a Ruler Catapult

You will need

Short ruler
Elastic band (quite thick)
Bulldog clip-Small enough to fit on the end of your ruler


                                                               IFORGOT PICTURES SO I DREW THEM!

Step 1: I Dont Really Know What to Call It . the Final Step?

Put the bulldog clip on the end of the ruler then put the elastic band onto the bulldog clip. Then use pencils to fire.

Comments

author
Wyattr55123 made it!(author)2013-07-05

That "short" 4 1/2 foot ruler is extremely long. Maybe 30 centimeters is what you were thinking

author
hamsTheMan made it!(author)2011-05-08

150cm that isnt short?

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