http://www.youtube.com/watch?v=7J80KD4BG7M Click here to watch Freeman's Mind: Episode 1 (Half-Life Machinima) Freeman's Mind...

A Half-Life 2/EP1/EP2 montage set to "Exile Vilify" by The National

Additional Thanks: Eriq Richardson Tom Pena Michelle McGee Gilbert Lattouf Tamara Bruketta

Measure the halflife of radioactive barium137m using our equipment

Collect decay data to determine the halflife of barium137m

Half-Life 2 Short video. Just a remix of what happens.

Five go in but only one can come out on top.

http://www.youtube.com/watch?v=QyUMpaaBGbg Click here to watch Minecraft for Xbox 360 (Minecraft Animation) 5 Games in 5 Seco...

Learn how to calculate the halflife of barium137m from the data you collected in the second video of this series.

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