At this time, another group of foreigners appeared on the other side and looked at the flint in front of them. They were constantly sighing. It can be imagined that the huge stone shocked them.

Their task this time is to find the spark, and this spark, after the research of American scientists, only a small piece, can maintain all the energy needed for a year's production in the United States. Experts are currently studying how these energy can be converted into their own use, but for this thing, it is also a bit difficult.

That's the way it's planned. This time it's also because of intelligence that we know...