Kategoria:
Biznes i finanse
Kanał:
The Economist
Data:
1 listopada 2017, 18:41
Poziom:
C1-C2 (zaawansowany)
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The first interstellar visitor to the solar system arrives, turns and leaves. What can be learned from the mysterious object? Also, researchers are kitting out drones to deliver supplies to the battlefield. And if wireless charging takes off, electric vehicles could—in theory—run forever
