Maria Blumm blogs under the title GREEN GABBRO, on geology type topics. BoingBoing pointed at this specific blog entry on how ice cream can be re-cast as an igneous rock. Below are a couple illustrations from her blog entry, and an excerpt. But I don't want to bury the lead here, as I see it. For my purposes, the lead is in now being aware of an entire blog environment devoted to science topics.
ice cream
igneous rock
Much like igneous rocks, the same liquid mix can turn out very differently depending on what happens while it is freezing. The goal of most ice cream and sorbet is to have a smooth and creamy texture, which would be ruined by the presence of large ice crystals. To achieve this, you want to cool your ice cream so quickly that the crystals don't have time to grow, and keep the mixture stirred up while it freezes.
Read the entire entry here: Green Gabbro : The Igneous Petrology of Ice Cream
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