Heating Buildings With Solar Energy Stored in Sand
Cars That Think
JANUARY 18, 2023
It is a daunting question that a startup called Polar Night Energy, in the small and chilly nation of Finland (Figure 1), is attempting to answer. As soon as we decided to pursue this idea, we were trying to figure out how the finances looked,” says Eronen. We cannot possibly build full-size prototypes to test all of our ideas.
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