The Pentagon and A.I. Giants Have a Weakness. Both Need China’s Batteries, Badly.

As warfare is reinvented in Ukraine, and Silicon Valley races to maintain its A.I. lead, China’s battery dominance is raising ...
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This giant inflatable dome is actually a CO2 battery designed to store renewable energy for a full day. Here’s how it works

On the Italian island of Sardinia, a strange, gleaming bubble rises from a patch of flat land. It’s held upright not by steel or concrete but by a small imbalance in pressure. Inside it sits 2,000 ...