So, to get to China, you should start digging in either Argentina or Chile. Your first challenge would be digging through the Earth's crust ... when you might need to switch to a propeller.
ExtremeTech on MSN2mon
DARPA Responds to China's Gallium Restrictions With New Push for Diamond-Based SemiconductorsChina's ban on exporting rare earth materials went into effect on Oct ... the US must find a new material for future defense ...
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