Why Can’t We Get Down To Absolute Zero? -- io9What is Absolute Zero, and does it really exist anywhere in the universe? Could we ever reach Absolute Zero in real life?
There are all sorts of reasons to be curious about the limits of cold. Maybe you're an incredibly lame supervillain who uses the power of freezing, and you want to understand the extent of your powers. Or you're wondering if it would be possible to outrun a wave of cold. Either way, in this week's "Ask a Physicist" we'll explore the farthest limits of cold.
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