Ever had a pen you couldn't use because an air bubble was blocking the ink? The ever-inquisitive OfficeSupplyGeek successfully tested a unique, but exhausting, method for removing the bubble. By the way, if you don't read @OSG, you should. His pen reviews are fun because they're always one part review, one part kitchen science experiment.
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Another OfficeSupplyGeek Experiment: Removing the Air Bubble from a Pen