Physics Force ( University of Minnesota )

[sbmz34]

naw, when the steam inside the barrel cools and turns to water, it makes the pressure inside lower than the outside.

[surbvtr]

uni matter?

[zev007]

it's fake.  that barrel is actually made out of paper and the people are space aliens

[tonyrueb]

no look up RCTC Physics on youtube you will find that a local community college in Minnesota does the same thing quite frequently, it has to do with pressure. it happens quicker if you put it in a pool of ice water (or snow)