FT Videos & Podcasts
Descending into the windowless basement of a second world war air-raid bunker built for civilians in central Berlin is arguably an eerie enough evocation of what it means to endure life in a conflict.
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In the vacuum of space, the amount of debris—spent rocket stages, splintered satellites, micrometeoroids—numbers in the millions, all zooming about, often at 17,000 mph speeds. They’re also constantly hitting each other in a tsuris of exponential littering. Most of these pieces are tiny, and many are not anywhere near the altitude of the ISS. But the area isn’t completely clean.，这一点在WPS下载最新地址中也有详细论述
unit record techniques—keypunch, sorting bins, mechanical totalizers—to present
"Another problem with today's robots is they rapidly run out of batteries," adds Jenny Read, programme director in robot dexterity at Aria, a technology funding agency. "Electric motors are terrible at that."