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Comment Re:Standard practice... (Score 1) 192

Stirring does not mean random distribution. Stirring homogenizes a batch, evening out distribution of mixtures and concentrations of solutions.

You'd think that would be right, but mixing, no matter how long, always leaves clumps. This is a known problem in, for example, paint mixing. You can stir for a year, then get out a microscope. You'll see clumps of pigment.

Comment Re:Standard practice... (Score 5, Insightful) 192

there is no really good reason that a tiny, tiny bit of peanut butter in a large meal won't work.

Yes there is. Peanut butter, no matter how well you stir it, will have random clumps of the allergen and people will die. More stirring does not solve the problem. Random does not mean equal distribution. It means random distribution, some of which will be in larger clumps.

Comment Re: PHB's strike again (Score 1) 207

The O rings were designed to expand and fill in the gap as the joint itself expanded. But because of the cold the material expanded too slowly. This was almost immediately known, and that information was slyly revealed to Richard Feynman, who gave his ice-water demonstration before the investigating committee.

Comment Re:Online footprints nearly reach fingerprint pari (Score 2) 144

the criminals won't stop at just one crime, they can even turn around and cyber-bully the officer who took them down

I know "bullying" is the new magic pass-phrase, but is that really bullying? He threatened the cop and got arrested for his trouble. Nobody seemed "bullied" to me.

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