President Obama Shoots A Marshmallow Cannon

Name: President Obama Shoots A Marshmallow Cannon
Uploaded: 2014-11-20T22:19:23+00:00
Duration: 3 min 1 s
Channel: Popular Science
Description: President Barack Obama pumps up and shoots a student's marshmallow launcher at the White House Science Fair in February 2012. <br />

Popular Science

President Barack Obama pumps up and shoots a student's marshmallow launcher at the White House Science Fair in February 2012.

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