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there is also science involved in roller derby. here i have illustrated the heisenberg uncertainty principle using beth amphetamine to exemplify it. for you non-sciencey types the principle basically states that you cannot know both an object's position and its momentum.

Great basic explanation of derby!

why I do roller derby

This is roller derby

Roller Derby

yeah basically, just don't

Roller derby

Roller Derby tee

This is roller derby

Roller Derby skate toe guards

You might be a Derby Girl if...

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JAM Roller Derby ;)

Derby on!

Queen of the Rink roller derby print

Roller Derby Ornament

Roller Derby Shirt by BlackMarketClothing on Etsy, $29.95

Roller Derby Socks!?!

"Roller Derby -- Helping Women Solve Problems With Violence since 1935". LOVE! Violence 3/4 sleeve T by LaidOutClothing on Etsy, $24.00

Roller derby

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