The Smallest Earth In Human History

This 3D map of Earth, carved by IBM's new nanometre-scale silicon milling machine, could fit alongside 999 other Earths onto a single grain of salt. Here's a look at the machine behind it:

Using heat and pressure, this nanomill can carve a substrate with single nanometre accuracy, and pretty quickly to boot. This Earth took but two minutes and 23 seconds to manufacture - not much slower than the process of producing a single colour page on a home printer from a decade+ ago.

[IBM via boingboing]

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