The robotic equivalent of a Swiss army knife (w/ video)

The device doesn't look like much: a caterpillar-sized assembly of metal rings and strips resembling something you might find buried in a home-workshop drawer. But the technology behind it, and the long-range possibilities ...

Hitachi unveils motor without 'rare earths'

Japanese high-tech firm Hitachi Wednesday unveiled an electric motor that does not use "rare earths", aiming to cut costs and reduce dependence on imports of the scarce minerals from China.

Nanoscale rust: The future of magnets?

Every motor we use needs a magnet. University of Manitoba researcher Rachel Nickel is studying how rust could make those magnets cheaper and easier to produce.

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