研究还指出，除了车龄，行驶里程也是影响因素。行驶超过16万公里的电动汽车，其电池健康状态仍在88%至95%之间。不过，这些数据也并非绝对可靠。例如，一辆高里程的较新的车，其电池性能可能优于一辆低里程的老车。
Today’s puzzle is a new twist on a classic genre: the “common knowledge” hat riddle in which logicians deduce facts about their hats based on what they know, and what they know others know.
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Ten of its KR1 robots are undergoing trials in commercial settings. They can be fitted with different grippers, depending on what the robot has to do. Strong "gorilla" pincers are used for picking up heavier boxes or, for more delicate items, a suction device can be used.
Asked what she would tell Sir Keir, Baroness Kidron quoted Winston Churchill, saying "the appeaser thinks that they feed the crocodile in the hope they'll be eaten last".