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Jonathan Rees I’ve written previously here  about the good and bad sides of suddenly being able to access the world’s biggest libraries through Google Books  when you have a research project that you’d like to finish someday. Another Google experiment that debuted while I was working on Refrigeration Nation was Google Ngrams . Ngrams, if you don’t know about them, chart the frequency of words or phrases as they appeared in volumes scanned by the Google Books project against the years that those books were published. (See Eric Schultz's post from last month.) Yes, it is incredibly easy to lose several hours playing with this research tool. Luckily for me, I already knew what I wanted to chart as soon as I heard of it: CLICK FOR LARGER IMAGE That is the chart for “ice box” vs. “refrigerator.” (For what it’s worth, icebox [one word] looks almost identical.) What I really appreciate about that chart is that it basically illustrates something that my research already told me: be...

Jonathan Rees When I titled my book Refrigeration Nation , I had to fight the urge to try out any number of bad puns first. Somehow doing that for blog posts seems more acceptable since they’re more transient. So no, I’m not going to make you watch a Vanilla Ice video (although I’m sorely tempted). Instead, take a look at this: By the time this amateur film was made in 1919, the practices it documents had largely passed into history. Testing  ice for thickness, cutting a grid pattern on the ice with what looks exactly like horse-drawn plows, moving blocks of ice across a narrow channel cut in a lake and into an ice house – each of these practices began over a century earlier in New England. Even today it seems incredible that New England once sent its ice for sale as far away as India. Other than shipbuilding and fishing, this may have been that region’s largest industry. Or was it an industry at all? I once knew a retired engineer who told me that anything humans have ever used wa...