The National Science and Engineering Challenge

@sciengchallenge • Joined April 13, 2012

Subscribers 351 | Views 53.9K | Videos 77

Subs#3,880,690

Subs#1,403,648

Views#3,803,938

Views#1,497,720

@sciengchallenge • Joined April 13, 2012

Sub 351 | View 53.9K | Video 77

#3,880,690

#1,403,648

#3,803,938

#1,497,720

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