"We have to try and test to find this optimisation of friction, of back-driveability," says David Kehr, president of humanoid robotics. "It's really a big puzzle."
One farmer in Somerset told the BBC that he was living on a "knife edge" as his crops were days away from rotting in the floodwater.
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Ministers are examining ways to ease the burden of student loans after weeks of pressure over a policy pulling more people into repayments, the Guardian understands.
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