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A comment on YouTube suspends Rand Paul for seven days. Parent comment
The study was not about testing masks, it was about developing a new cheap method of testing masks. They only tested each mask once, because the question was whether they could get data from the technique, not to actually study each mask type.
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The study was not about testing masks, it was about developing a new cheap method of testing masks. They only tested each mask once, because the question was whether they could get data from the technique, not to actually study each mask type.