Rob Cockerham was determined to make perfectly clear ice. He tried boiling and cooling it, double-boiling it, filtering it, insulating it, and various methods for making it freeze from the top down, or from the bottom up. He cobbled together various gadgets to warm it, stir it, and de-gas the water as it froze. After about a month of experiments, he finally found a technique that worked for him. Sort of. You might think it cheating that Cockerham ultimately had to slice the bubbles off the clear parts, which is what I suggested in my head at the beginning of the saga. Read about the process at Cockeyed. -via Metafilter
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