Fair rating?How the Universe Works· Season 4 · Episode 8
Forces of Mass Construction (aka Magnetism)
Scientists attempt to understand how this strange force of magnetism works.
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#5In Season 4of 8 rated episodes
#33All-timeof 92 rated episodes
+0.1vs season avgSeason 4 averages 8.4
2015First airedSeptember 1, 2015