Nike Air Soles do not actually have 'air' in them.
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Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
If you toss a penny 10,000 times, it will not be heads 5,000 times, but more like 4,950. The heads picture weighs more, so it ends up on the bottom.
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