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ARPA-E is funding several projects that use liquid battery electrodes to cut costs and increase energy density.
If it can convert natural gas to transportation fuels and commodity chemicals, it could reduce our dependence on oil.
A prime piece of evidence linking human activity to climate change turns out to be an artifact of poor mathematics.
A high-power circuit breaker could finally make DC power grids practical.
If you believe Tesla, affordable, long-range electric cars could be here sooner than many think.
Smart home appliances could become more common thanks to efforts by major companies including Lowe’s and Staples to make gadgets compatible.
Low-cost materials could make storing hours of power from a wind farm economically feasible.
ARPA-E faces a tricky mandate—invest in risky technologies that no one else wants to fund, while still showing results.