Engineering

Coffee grounds offer performance boost for concrete

Engineers in Australia have found a way of making stronger concrete with roasted used-coffee grounds, to give the drink-additive a "double shot" at life and reduce waste going to landfills.

Energy & Green Tech

Wind forecast improvement project saves millions for utilities

The wind doesn't always blow where it's needed–that's the biggest hurdle in fitting wind energy to the nation's portfolio of renewable energy. When the wind isn't blowing, utility companies must turn to other electricity ...

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