You did a great job of explaining , and I failed biology in High School! I had to look up only one term, viscosity. I thought viscosity had something to do with engine oil from my watching TV commercials.

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You are a very good teacher! Not all scientists are skilled at teaching and many are condescending. My HIgh School Biology teacher always described himself as a scientist and was very condescending. I never heard of anyone getting higher than a C+ in his class, even the straight A students!

Thanks for your article, I am smarter now having read it!

RE: How Can Scientists “See” DNA?

Have a great week.